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Finding the Fourth Proportional to 558,754.80, 838,356.66 and 255,292.80

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Solution

The fourth proportional to 558,754.80, 838,356.66 and 255,292.80 is: 383,041.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,754.80 : 838,356.66 = 255,292.80 : x
  2. Step 2: Convert to fraction form
    558,754.80/838,356.66 = 255,292.80/x
  3. Step 3: Cross multiply
    558,754.80x = 838,356.66 × 255,292.80
  4. Step 4: Simplify right side
    558,754.80x = 214,026,419,130.05
  5. Step 5: Solve for x
    x = 214,026,419,130.05/558,754.80
  6. Step 6: Final answer
    x = 383,041.75

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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.