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Finding the Fourth Proportional to 451,248.60, 676,872.90 and 412,541.40

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Solution

The fourth proportional to 451,248.60, 676,872.90 and 412,541.40 is: 618,812.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,248.60 : 676,872.90 = 412,541.40 : x
  2. Step 2: Convert to fraction form
    451,248.60/676,872.90 = 412,541.40/x
  3. Step 3: Cross multiply
    451,248.60x = 676,872.90 × 412,541.40
  4. Step 4: Simplify right side
    451,248.60x = 279,238,093,788.06
  5. Step 5: Solve for x
    x = 279,238,093,788.06/451,248.60
  6. Step 6: Final answer
    x = 618,812.10

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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.