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Finding the Fourth Proportional to 582,533.52, 804,145 and 391,657.60

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Solution

The fourth proportional to 582,533.52, 804,145 and 391,657.60 is: 540,654.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,533.52 : 804,145 = 391,657.60 : x
  2. Step 2: Convert to fraction form
    582,533.52/804,145 = 391,657.60/x
  3. Step 3: Cross multiply
    582,533.52x = 804,145 × 391,657.60
  4. Step 4: Simplify right side
    582,533.52x = 314,949,500,752
  5. Step 5: Solve for x
    x = 314,949,500,752/582,533.52
  6. Step 6: Final answer
    x = 540,654.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.