Home / 641,210.96-884,794.20-369,367.76

Finding the Fourth Proportional to 641,210.96, 884,794.20 and 369,367.76

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Solution

The fourth proportional to 641,210.96, 884,794.20 and 369,367.76 is: 509,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,210.96 : 884,794.20 = 369,367.76 : x
  2. Step 2: Convert to fraction form
    641,210.96/884,794.20 = 369,367.76/x
  3. Step 3: Cross multiply
    641,210.96x = 884,794.20 × 369,367.76
  4. Step 4: Simplify right side
    641,210.96x = 326,814,451,714.99
  5. Step 5: Solve for x
    x = 326,814,451,714.99/641,210.96
  6. Step 6: Final answer
    x = 509,683.20

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Half scale
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Double scale
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Similar ratio
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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.