Home / 800,415,565.76-1,103,696,344.32-521,439,746.24

Finding the Fourth Proportional to 800,415,565.76, 1,103,696,344.32 and 521,439,746.24

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Solution

The fourth proportional to 800,415,565.76, 1,103,696,344.32 and 521,439,746.24 is: 719,015,429.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,415,565.76 : 1,103,696,344.32 = 521,439,746.24 : x
  2. Step 2: Convert to fraction form
    800,415,565.76/1,103,696,344.32 = 521,439,746.24/x
  3. Step 3: Cross multiply
    800,415,565.76x = 1,103,696,344.32 × 521,439,746.24
  4. Step 4: Simplify right side
    800,415,565.76x = 575,511,141,708,236,416
  5. Step 5: Solve for x
    x = 575,511,141,708,236,416/800,415,565.76
  6. Step 6: Final answer
    x = 719,015,429.39

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Half scale
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Double scale
Find fourth proportional to 800,415,566.76, 1,103,696,345.70 and 521,439,747.24
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.