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Finding the Fourth Proportional to 582,516.84, 804,122.04 and 391,641

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Solution

The fourth proportional to 582,516.84, 804,122.04 and 391,641 is: 540,631.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,516.84 : 804,122.04 = 391,641 : x
  2. Step 2: Convert to fraction form
    582,516.84/804,122.04 = 391,641/x
  3. Step 3: Cross multiply
    582,516.84x = 804,122.04 × 391,641
  4. Step 4: Simplify right side
    582,516.84x = 314,927,159,867.64
  5. Step 5: Solve for x
    x = 314,927,159,867.64/582,516.84
  6. Step 6: Final answer
    x = 540,631.86

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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.