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Finding the Fourth Proportional to 572,585.10, 858,186.45 and 291,957.90

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Solution

The fourth proportional to 572,585.10, 858,186.45 and 291,957.90 is: 437,584.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,585.10 : 858,186.45 = 291,957.90 : x
  2. Step 2: Convert to fraction form
    572,585.10/858,186.45 = 291,957.90/x
  3. Step 3: Cross multiply
    572,585.10x = 858,186.45 × 291,957.90
  4. Step 4: Simplify right side
    572,585.10x = 250,554,313,750.46
  5. Step 5: Solve for x
    x = 250,554,313,750.46/572,585.10
  6. Step 6: Final answer
    x = 437,584.41

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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.