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Finding the Fourth Proportional to 582,547.41, 804,163.19 and 391,671.45

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Solution

The fourth proportional to 582,547.41, 804,163.19 and 391,671.45 is: 540,673.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,547.41 : 804,163.19 = 391,671.45 : x
  2. Step 2: Convert to fraction form
    582,547.41/804,163.19 = 391,671.45/x
  3. Step 3: Cross multiply
    582,547.41x = 804,163.19 × 391,671.45
  4. Step 4: Simplify right side
    582,547.41x = 314,967,760,705.57
  5. Step 5: Solve for x
    x = 314,967,760,705.57/582,547.41
  6. Step 6: Final answer
    x = 540,673.18

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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.