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Finding the Fourth Proportional to 653,387.46, 901,685.34 and 363,017.76

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Solution

The fourth proportional to 653,387.46, 901,685.34 and 363,017.76 is: 500,970.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,387.46 : 901,685.34 = 363,017.76 : x
  2. Step 2: Convert to fraction form
    653,387.46/901,685.34 = 363,017.76/x
  3. Step 3: Cross multiply
    653,387.46x = 901,685.34 × 363,017.76
  4. Step 4: Simplify right side
    653,387.46x = 327,327,792,351.64
  5. Step 5: Solve for x
    x = 327,327,792,351.64/653,387.46
  6. Step 6: Final answer
    x = 500,970.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.