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Finding the Fourth Proportional to 357,718.86, 536,594.58 and 253,005.30

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Solution

The fourth proportional to 357,718.86, 536,594.58 and 253,005.30 is: 379,519.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,718.86 : 536,594.58 = 253,005.30 : x
  2. Step 2: Convert to fraction form
    357,718.86/536,594.58 = 253,005.30/x
  3. Step 3: Cross multiply
    357,718.86x = 536,594.58 × 253,005.30
  4. Step 4: Simplify right side
    357,718.86x = 135,761,272,691.27
  5. Step 5: Solve for x
    x = 135,761,272,691.27/357,718.86
  6. Step 6: Final answer
    x = 379,519.47

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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.