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Finding the Fourth Proportional to 615,042.80, 922,564.20 and 591,423.20

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Solution

The fourth proportional to 615,042.80, 922,564.20 and 591,423.20 is: 887,134.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,042.80 : 922,564.20 = 591,423.20 : x
  2. Step 2: Convert to fraction form
    615,042.80/922,564.20 = 591,423.20/x
  3. Step 3: Cross multiply
    615,042.80x = 922,564.20 × 591,423.20
  4. Step 4: Simplify right side
    615,042.80x = 545,625,871,369.44
  5. Step 5: Solve for x
    x = 545,625,871,369.44/615,042.80
  6. Step 6: Final answer
    x = 887,134.80

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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.