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Finding the Fourth Proportional to 561,936.20, 842,904.30 and 496,982.30

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Solution

The fourth proportional to 561,936.20, 842,904.30 and 496,982.30 is: 745,473.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,936.20 : 842,904.30 = 496,982.30 : x
  2. Step 2: Convert to fraction form
    561,936.20/842,904.30 = 496,982.30/x
  3. Step 3: Cross multiply
    561,936.20x = 842,904.30 × 496,982.30
  4. Step 4: Simplify right side
    561,936.20x = 418,908,517,693.89
  5. Step 5: Solve for x
    x = 418,908,517,693.89/561,936.20
  6. Step 6: Final answer
    x = 745,473.45

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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.