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Finding the Fourth Proportional to 654,066.20, 902,686.20 and 363,706.76

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Solution

The fourth proportional to 654,066.20, 902,686.20 and 363,706.76 is: 501,956.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,066.20 : 902,686.20 = 363,706.76 : x
  2. Step 2: Convert to fraction form
    654,066.20/902,686.20 = 363,706.76/x
  3. Step 3: Cross multiply
    654,066.20x = 902,686.20 × 363,706.76
  4. Step 4: Simplify right side
    654,066.20x = 328,313,073,098.71
  5. Step 5: Solve for x
    x = 328,313,073,098.71/654,066.20
  6. Step 6: Final answer
    x = 501,956.95

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.