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Finding the Fourth Proportional to 492,324.40, 738,049.20 and 292,432.60

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Solution

The fourth proportional to 492,324.40, 738,049.20 and 292,432.60 is: 438,389.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,324.40 : 738,049.20 = 292,432.60 : x
  2. Step 2: Convert to fraction form
    492,324.40/738,049.20 = 292,432.60/x
  3. Step 3: Cross multiply
    492,324.40x = 738,049.20 × 292,432.60
  4. Step 4: Simplify right side
    492,324.40x = 215,829,646,483.92
  5. Step 5: Solve for x
    x = 215,829,646,483.92/492,324.40
  6. Step 6: Final answer
    x = 438,389.09

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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.