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Finding the Fourth Proportional to 494,165.70, 741,248.55 and 433,148.40

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Solution

The fourth proportional to 494,165.70, 741,248.55 and 433,148.40 is: 649,722.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,165.70 : 741,248.55 = 433,148.40 : x
  2. Step 2: Convert to fraction form
    494,165.70/741,248.55 = 433,148.40/x
  3. Step 3: Cross multiply
    494,165.70x = 741,248.55 × 433,148.40
  4. Step 4: Simplify right side
    494,165.70x = 321,070,623,434.82
  5. Step 5: Solve for x
    x = 321,070,623,434.82/494,165.70
  6. Step 6: Final answer
    x = 649,722.60

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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.