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Finding the Fourth Proportional to 499,272.30, 748,908.45 and 166,848.30

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Solution

The fourth proportional to 499,272.30, 748,908.45 and 166,848.30 is: 250,272.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,272.30 : 748,908.45 = 166,848.30 : x
  2. Step 2: Convert to fraction form
    499,272.30/748,908.45 = 166,848.30/x
  3. Step 3: Cross multiply
    499,272.30x = 748,908.45 × 166,848.30
  4. Step 4: Simplify right side
    499,272.30x = 124,954,101,738.14
  5. Step 5: Solve for x
    x = 124,954,101,738.14/499,272.30
  6. Step 6: Final answer
    x = 250,272.45

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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.