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Finding the Fourth Proportional to 558,825.72, 838,298.55 and 239,010.80

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Solution

The fourth proportional to 558,825.72, 838,298.55 and 239,010.80 is: 358,541.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,825.72 : 838,298.55 = 239,010.80 : x
  2. Step 2: Convert to fraction form
    558,825.72/838,298.55 = 239,010.80/x
  3. Step 3: Cross multiply
    558,825.72x = 838,298.55 × 239,010.80
  4. Step 4: Simplify right side
    558,825.72x = 200,362,407,150.13
  5. Step 5: Solve for x
    x = 200,362,407,150.13/558,825.72
  6. Step 6: Final answer
    x = 358,541.85

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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.