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Finding the Fourth Proportional to 585,437.06, 807,607.17 and 391,853.00

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Solution

The fourth proportional to 585,437.06, 807,607.17 and 391,853.00 is: 540,559.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,437.06 : 807,607.17 = 391,853.00 : x
  2. Step 2: Convert to fraction form
    585,437.06/807,607.17 = 391,853.00/x
  3. Step 3: Cross multiply
    585,437.06x = 807,607.17 × 391,853.00
  4. Step 4: Simplify right side
    585,437.06x = 316,463,288,347.97
  5. Step 5: Solve for x
    x = 316,463,288,347.97/585,437.06
  6. Step 6: Final answer
    x = 540,559.03

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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.