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Finding the Fourth Proportional to 292,704.60, 438,732.90 and 115,152.60

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Solution

The fourth proportional to 292,704.60, 438,732.90 and 115,152.60 is: 172,601.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,704.60 : 438,732.90 = 115,152.60 : x
  2. Step 2: Convert to fraction form
    292,704.60/438,732.90 = 115,152.60/x
  3. Step 3: Cross multiply
    292,704.60x = 438,732.90 × 115,152.60
  4. Step 4: Simplify right side
    292,704.60x = 50,521,234,140.54
  5. Step 5: Solve for x
    x = 50,521,234,140.54/292,704.60
  6. Step 6: Final answer
    x = 172,601.44

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1.5x scale

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.