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Finding the Fourth Proportional to 572,405.10, 858,607.65 and 572,405.10

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Solution

The fourth proportional to 572,405.10, 858,607.65 and 572,405.10 is: 858,607.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,405.10 : 858,607.65 = 572,405.10 : x
  2. Step 2: Convert to fraction form
    572,405.10/858,607.65 = 572,405.10/x
  3. Step 3: Cross multiply
    572,405.10x = 858,607.65 × 572,405.10
  4. Step 4: Simplify right side
    572,405.10x = 491,471,397,759.02
  5. Step 5: Solve for x
    x = 491,471,397,759.02/572,405.10
  6. Step 6: Final answer
    x = 858,607.65

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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.