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Finding the Fourth Proportional to 418,706.43, 577,684.50 and 237,404.13

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Solution

The fourth proportional to 418,706.43, 577,684.50 and 237,404.13 is: 327,543.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,706.43 : 577,684.50 = 237,404.13 : x
  2. Step 2: Convert to fraction form
    418,706.43/577,684.50 = 237,404.13/x
  3. Step 3: Cross multiply
    418,706.43x = 577,684.50 × 237,404.13
  4. Step 4: Simplify right side
    418,706.43x = 137,144,686,136.99
  5. Step 5: Solve for x
    x = 137,144,686,136.99/418,706.43
  6. Step 6: Final answer
    x = 327,543.78

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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.