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Finding the Fourth Proportional to 523,411.90, 785,117.85 and 484,920.70

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Solution

The fourth proportional to 523,411.90, 785,117.85 and 484,920.70 is: 727,381.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,411.90 : 785,117.85 = 484,920.70 : x
  2. Step 2: Convert to fraction form
    523,411.90/785,117.85 = 484,920.70/x
  3. Step 3: Cross multiply
    523,411.90x = 785,117.85 × 484,920.70
  4. Step 4: Simplify right side
    523,411.90x = 380,719,897,404.50
  5. Step 5: Solve for x
    x = 380,719,897,404.50/523,411.90
  6. Step 6: Final answer
    x = 727,381.05

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.