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Finding the Fourth Proportional to 582,435.84, 804,009.44 and 391,559.95

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Solution

The fourth proportional to 582,435.84, 804,009.44 and 391,559.95 is: 540,519.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,435.84 : 804,009.44 = 391,559.95 : x
  2. Step 2: Convert to fraction form
    582,435.84/804,009.44 = 391,559.95/x
  3. Step 3: Cross multiply
    582,435.84x = 804,009.44 × 391,559.95
  4. Step 4: Simplify right side
    582,435.84x = 314,817,895,848.56
  5. Step 5: Solve for x
    x = 314,817,895,848.56/582,435.84
  6. Step 6: Final answer
    x = 540,519.44

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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.