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Finding the Fourth Proportional to 617,587.80, 926,424.90 and 243,562.20

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Solution

The fourth proportional to 617,587.80, 926,424.90 and 243,562.20 is: 365,360.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,587.80 : 926,424.90 = 243,562.20 : x
  2. Step 2: Convert to fraction form
    617,587.80/926,424.90 = 243,562.20/x
  3. Step 3: Cross multiply
    617,587.80x = 926,424.90 × 243,562.20
  4. Step 4: Simplify right side
    617,587.80x = 225,642,086,778.78
  5. Step 5: Solve for x
    x = 225,642,086,778.78/617,587.80
  6. Step 6: Final answer
    x = 365,360.34

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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.