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Finding the Fourth Proportional to 552,870.64, 763,196.91 and 371,687.66

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Solution

The fourth proportional to 552,870.64, 763,196.91 and 371,687.66 is: 513,087.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,870.64 : 763,196.91 = 371,687.66 : x
  2. Step 2: Convert to fraction form
    552,870.64/763,196.91 = 371,687.66/x
  3. Step 3: Cross multiply
    552,870.64x = 763,196.91 × 371,687.66
  4. Step 4: Simplify right side
    552,870.64x = 283,670,873,597.13
  5. Step 5: Solve for x
    x = 283,670,873,597.13/552,870.64
  6. Step 6: Final answer
    x = 513,087.25

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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.