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Finding the Fourth Proportional to 519,339.48, 779,009.22 and 125,355.48

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Solution

The fourth proportional to 519,339.48, 779,009.22 and 125,355.48 is: 188,033.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,339.48 : 779,009.22 = 125,355.48 : x
  2. Step 2: Convert to fraction form
    519,339.48/779,009.22 = 125,355.48/x
  3. Step 3: Cross multiply
    519,339.48x = 779,009.22 × 125,355.48
  4. Step 4: Simplify right side
    519,339.48x = 97,653,074,697.53
  5. Step 5: Solve for x
    x = 97,653,074,697.53/519,339.48
  6. Step 6: Final answer
    x = 188,033.22

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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.