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Finding the Fourth Proportional to 715,151.60, 987,168.18 and 473,512.03

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Solution

The fourth proportional to 715,151.60, 987,168.18 and 473,512.03 is: 653,618.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,151.60 : 987,168.18 = 473,512.03 : x
  2. Step 2: Convert to fraction form
    715,151.60/987,168.18 = 473,512.03/x
  3. Step 3: Cross multiply
    715,151.60x = 987,168.18 × 473,512.03
  4. Step 4: Simplify right side
    715,151.60x = 467,436,006,320.02
  5. Step 5: Solve for x
    x = 467,436,006,320.02/715,151.60
  6. Step 6: Final answer
    x = 653,618.06

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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.