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Finding the Fourth Proportional to 493,432.60, 740,242.32 and 156,558.04

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Solution

The fourth proportional to 493,432.60, 740,242.32 and 156,558.04 is: 234,866.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,432.60 : 740,242.32 = 156,558.04 : x
  2. Step 2: Convert to fraction form
    493,432.60/740,242.32 = 156,558.04/x
  3. Step 3: Cross multiply
    493,432.60x = 740,242.32 × 156,558.04
  4. Step 4: Simplify right side
    493,432.60x = 115,890,886,744.25
  5. Step 5: Solve for x
    x = 115,890,886,744.25/493,432.60
  6. Step 6: Final answer
    x = 234,866.70

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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.