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Finding the Fourth Proportional to 492,078.15, 738,117.23 and 448,532.55

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Solution

The fourth proportional to 492,078.15, 738,117.23 and 448,532.55 is: 672,798.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,078.15 : 738,117.23 = 448,532.55 : x
  2. Step 2: Convert to fraction form
    492,078.15/738,117.23 = 448,532.55/x
  3. Step 3: Cross multiply
    492,078.15x = 738,117.23 × 448,532.55
  4. Step 4: Simplify right side
    492,078.15x = 331,069,601,128.17
  5. Step 5: Solve for x
    x = 331,069,601,128.17/492,078.15
  6. Step 6: Final answer
    x = 672,798.83

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Similar ratio
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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.