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Finding the Fourth Proportional to 493,580.50, 740,370.86 and 178,037.38

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Solution

The fourth proportional to 493,580.50, 740,370.86 and 178,037.38 is: 267,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,580.50 : 740,370.86 = 178,037.38 : x
  2. Step 2: Convert to fraction form
    493,580.50/740,370.86 = 178,037.38/x
  3. Step 3: Cross multiply
    493,580.50x = 740,370.86 × 178,037.38
  4. Step 4: Simplify right side
    493,580.50x = 131,813,683,550.71
  5. Step 5: Solve for x
    x = 131,813,683,550.71/493,580.50
  6. Step 6: Final answer
    x = 267,056.10

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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.