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Finding the Fourth Proportional to 582,436.84, 804,010.82 and 391,560.95

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Solution

The fourth proportional to 582,436.84, 804,010.82 and 391,560.95 is: 540,520.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,436.84 : 804,010.82 = 391,560.95 : x
  2. Step 2: Convert to fraction form
    582,436.84/804,010.82 = 391,560.95/x
  3. Step 3: Cross multiply
    582,436.84x = 804,010.82 × 391,560.95
  4. Step 4: Simplify right side
    582,436.84x = 314,819,240,489.48
  5. Step 5: Solve for x
    x = 314,819,240,489.48/582,436.84
  6. Step 6: Final answer
    x = 540,520.82

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1.5x scale

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.