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Finding the Fourth Proportional to 514,941.20, 772,469.40 and 159,952.40

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Solution

The fourth proportional to 514,941.20, 772,469.40 and 159,952.40 is: 239,946.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,941.20 : 772,469.40 = 159,952.40 : x
  2. Step 2: Convert to fraction form
    514,941.20/772,469.40 = 159,952.40/x
  3. Step 3: Cross multiply
    514,941.20x = 772,469.40 × 159,952.40
  4. Step 4: Simplify right side
    514,941.20x = 123,558,334,456.56
  5. Step 5: Solve for x
    x = 123,558,334,456.56/514,941.20
  6. Step 6: Final answer
    x = 239,946.49

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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.