Home / 840,778.76-1,160,299.32-458,830.16

Finding the Fourth Proportional to 840,778.76, 1,160,299.32 and 458,830.16

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Solution

The fourth proportional to 840,778.76, 1,160,299.32 and 458,830.16 is: 633,199.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,778.76 : 1,160,299.32 = 458,830.16 : x
  2. Step 2: Convert to fraction form
    840,778.76/1,160,299.32 = 458,830.16/x
  3. Step 3: Cross multiply
    840,778.76x = 1,160,299.32 × 458,830.16
  4. Step 4: Simplify right side
    840,778.76x = 532,380,322,643.49
  5. Step 5: Solve for x
    x = 532,380,322,643.49/840,778.76
  6. Step 6: Final answer
    x = 633,199.06

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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.