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Finding the Fourth Proportional to 565,139.20, 847,708.80 and 473,900.80

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Solution

The fourth proportional to 565,139.20, 847,708.80 and 473,900.80 is: 710,851.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,139.20 : 847,708.80 = 473,900.80 : x
  2. Step 2: Convert to fraction form
    565,139.20/847,708.80 = 473,900.80/x
  3. Step 3: Cross multiply
    565,139.20x = 847,708.80 × 473,900.80
  4. Step 4: Simplify right side
    565,139.20x = 401,729,878,487.04
  5. Step 5: Solve for x
    x = 401,729,878,487.04/565,139.20
  6. Step 6: Final answer
    x = 710,851.20

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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.