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Finding the Fourth Proportional to 492,527.92, 738,833.79 and 155,478.40

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Solution

The fourth proportional to 492,527.92, 738,833.79 and 155,478.40 is: 233,230.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,527.92 : 738,833.79 = 155,478.40 : x
  2. Step 2: Convert to fraction form
    492,527.92/738,833.79 = 155,478.40/x
  3. Step 3: Cross multiply
    492,527.92x = 738,833.79 × 155,478.40
  4. Step 4: Simplify right side
    492,527.92x = 114,872,695,535.14
  5. Step 5: Solve for x
    x = 114,872,695,535.14/492,527.92
  6. Step 6: Final answer
    x = 233,230.83

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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.