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Finding the Fourth Proportional to 519,334.48, 779,001.72 and 125,350.48

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Solution

The fourth proportional to 519,334.48, 779,001.72 and 125,350.48 is: 188,025.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,334.48 : 779,001.72 = 125,350.48 : x
  2. Step 2: Convert to fraction form
    519,334.48/779,001.72 = 125,350.48/x
  3. Step 3: Cross multiply
    519,334.48x = 779,001.72 × 125,350.48
  4. Step 4: Simplify right side
    519,334.48x = 97,648,239,522.83
  5. Step 5: Solve for x
    x = 97,648,239,522.83/519,334.48
  6. Step 6: Final answer
    x = 188,025.72

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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.