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Finding the Fourth Proportional to 656,346.30, 984,519.45 and 157,710.30

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Solution

The fourth proportional to 656,346.30, 984,519.45 and 157,710.30 is: 236,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,346.30 : 984,519.45 = 157,710.30 : x
  2. Step 2: Convert to fraction form
    656,346.30/984,519.45 = 157,710.30/x
  3. Step 3: Cross multiply
    656,346.30x = 984,519.45 × 157,710.30
  4. Step 4: Simplify right side
    656,346.30x = 155,268,857,815.34
  5. Step 5: Solve for x
    x = 155,268,857,815.34/656,346.30
  6. Step 6: Final answer
    x = 236,565.45

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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.