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Finding the Fourth Proportional to 385,866.60, 578,997.48 and 183,691.52

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Solution

The fourth proportional to 385,866.60, 578,997.48 and 183,691.52 is: 275,631.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,866.60 : 578,997.48 = 183,691.52 : x
  2. Step 2: Convert to fraction form
    385,866.60/578,997.48 = 183,691.52/x
  3. Step 3: Cross multiply
    385,866.60x = 578,997.48 × 183,691.52
  4. Step 4: Simplify right side
    385,866.60x = 106,356,927,177.37
  5. Step 5: Solve for x
    x = 106,356,927,177.37/385,866.60
  6. Step 6: Final answer
    x = 275,631.34

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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.