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Finding the Fourth Proportional to 573,747.12, 858,938.31 and 402,374.88

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Solution

The fourth proportional to 573,747.12, 858,938.31 and 402,374.88 is: 602,382.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,747.12 : 858,938.31 = 402,374.88 : x
  2. Step 2: Convert to fraction form
    573,747.12/858,938.31 = 402,374.88/x
  3. Step 3: Cross multiply
    573,747.12x = 858,938.31 × 402,374.88
  4. Step 4: Simplify right side
    573,747.12x = 345,615,199,413.65
  5. Step 5: Solve for x
    x = 345,615,199,413.65/573,747.12
  6. Step 6: Final answer
    x = 602,382.46

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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.