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Finding the Fourth Proportional to 539,154.01, 808,304.89 and 269,143.57

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Solution

The fourth proportional to 539,154.01, 808,304.89 and 269,143.57 is: 403,502.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,154.01 : 808,304.89 = 269,143.57 : x
  2. Step 2: Convert to fraction form
    539,154.01/808,304.89 = 269,143.57/x
  3. Step 3: Cross multiply
    539,154.01x = 808,304.89 × 269,143.57
  4. Step 4: Simplify right side
    539,154.01x = 217,550,061,049.44
  5. Step 5: Solve for x
    x = 217,550,061,049.44/539,154.01
  6. Step 6: Final answer
    x = 403,502.63

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Half scale
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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.