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Finding the Fourth Proportional to 582,438.84, 804,013.59 and 391,562.94

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Solution

The fourth proportional to 582,438.84, 804,013.59 and 391,562.94 is: 540,523.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,438.84 : 804,013.59 = 391,562.94 : x
  2. Step 2: Convert to fraction form
    582,438.84/804,013.59 = 391,562.94/x
  3. Step 3: Cross multiply
    582,438.84x = 804,013.59 × 391,562.94
  4. Step 4: Simplify right side
    582,438.84x = 314,821,925,100.36
  5. Step 5: Solve for x
    x = 314,821,925,100.36/582,438.84
  6. Step 6: Final answer
    x = 540,523.58

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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.