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Finding the Fourth Proportional to 582,437.43, 804,011.66 and 391,561.54

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Solution

The fourth proportional to 582,437.43, 804,011.66 and 391,561.54 is: 540,521.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,437.43 : 804,011.66 = 391,561.54 : x
  2. Step 2: Convert to fraction form
    582,437.43/804,011.66 = 391,561.54/x
  3. Step 3: Cross multiply
    582,437.43x = 804,011.66 × 391,561.54
  4. Step 4: Simplify right side
    582,437.43x = 314,820,042,736.43
  5. Step 5: Solve for x
    x = 314,820,042,736.43/582,437.43
  6. Step 6: Final answer
    x = 540,521.65

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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.