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Finding the Fourth Proportional to 447,915.70, 618,123.54 and 246,711.70

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Solution

The fourth proportional to 447,915.70, 618,123.54 and 246,711.70 is: 340,462.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,915.70 : 618,123.54 = 246,711.70 : x
  2. Step 2: Convert to fraction form
    447,915.70/618,123.54 = 246,711.70/x
  3. Step 3: Cross multiply
    447,915.70x = 618,123.54 × 246,711.70
  4. Step 4: Simplify right side
    447,915.70x = 152,498,309,363.42
  5. Step 5: Solve for x
    x = 152,498,309,363.42/447,915.70
  6. Step 6: Final answer
    x = 340,462.08

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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.