Home / 1,238,478.10-1,857,717.15-397,114.90

Finding the Fourth Proportional to 1,238,478.10, 1,857,717.15 and 397,114.90

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Solution

The fourth proportional to 1,238,478.10, 1,857,717.15 and 397,114.90 is: 595,672.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,478.10 : 1,857,717.15 = 397,114.90 : x
  2. Step 2: Convert to fraction form
    1,238,478.10/1,857,717.15 = 397,114.90/x
  3. Step 3: Cross multiply
    1,238,478.10x = 1,857,717.15 × 397,114.90
  4. Step 4: Simplify right side
    1,238,478.10x = 737,727,160,250.54
  5. Step 5: Solve for x
    x = 737,727,160,250.54/1,238,478.10
  6. Step 6: Final answer
    x = 595,672.35

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Double scale
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Similar ratio
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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.