Home / 765,966.75-1,056,873.90-443,657.61

Finding the Fourth Proportional to 765,966.75, 1,056,873.90 and 443,657.61

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Solution

The fourth proportional to 765,966.75, 1,056,873.90 and 443,657.61 is: 612,154.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,966.75 : 1,056,873.90 = 443,657.61 : x
  2. Step 2: Convert to fraction form
    765,966.75/1,056,873.90 = 443,657.61/x
  3. Step 3: Cross multiply
    765,966.75x = 1,056,873.90 × 443,657.61
  4. Step 4: Simplify right side
    765,966.75x = 468,890,148,545.38
  5. Step 5: Solve for x
    x = 468,890,148,545.38/765,966.75
  6. Step 6: Final answer
    x = 612,154.70

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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.