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Finding the Fourth Proportional to 424,947.60, 637,421.40 and 237,934.80

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Solution

The fourth proportional to 424,947.60, 637,421.40 and 237,934.80 is: 356,902.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,947.60 : 637,421.40 = 237,934.80 : x
  2. Step 2: Convert to fraction form
    424,947.60/637,421.40 = 237,934.80/x
  3. Step 3: Cross multiply
    424,947.60x = 637,421.40 × 237,934.80
  4. Step 4: Simplify right side
    424,947.60x = 151,664,733,324.72
  5. Step 5: Solve for x
    x = 151,664,733,324.72/424,947.60
  6. Step 6: Final answer
    x = 356,902.20

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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.