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Finding the Fourth Proportional to 552,862.61, 763,185.81 and 371,679.63

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Solution

The fourth proportional to 552,862.61, 763,185.81 and 371,679.63 is: 513,076.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,862.61 : 763,185.81 = 371,679.63 : x
  2. Step 2: Convert to fraction form
    552,862.61/763,185.81 = 371,679.63/x
  3. Step 3: Cross multiply
    552,862.61x = 763,185.81 × 371,679.63
  4. Step 4: Simplify right side
    552,862.61x = 283,660,619,482.05
  5. Step 5: Solve for x
    x = 283,660,619,482.05/552,862.61
  6. Step 6: Final answer
    x = 513,076.15

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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.