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Finding the Fourth Proportional to 488,892.20, 734,213.10 and 473,145.80

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Solution

The fourth proportional to 488,892.20, 734,213.10 and 473,145.80 is: 710,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,892.20 : 734,213.10 = 473,145.80 : x
  2. Step 2: Convert to fraction form
    488,892.20/734,213.10 = 473,145.80/x
  3. Step 3: Cross multiply
    488,892.20x = 734,213.10 × 473,145.80
  4. Step 4: Simplify right side
    488,892.20x = 347,389,844,569.98
  5. Step 5: Solve for x
    x = 347,389,844,569.98/488,892.20
  6. Step 6: Final answer
    x = 710,565.32

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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.