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Finding the Fourth Proportional to 424,398.18, 585,658.88 and 230,803.60

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Solution

The fourth proportional to 424,398.18, 585,658.88 and 230,803.60 is: 318,503.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,398.18 : 585,658.88 = 230,803.60 : x
  2. Step 2: Convert to fraction form
    424,398.18/585,658.88 = 230,803.60/x
  3. Step 3: Cross multiply
    424,398.18x = 585,658.88 × 230,803.60
  4. Step 4: Simplify right side
    424,398.18x = 135,172,177,875.97
  5. Step 5: Solve for x
    x = 135,172,177,875.97/424,398.18
  6. Step 6: Final answer
    x = 318,503.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.