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Finding the Fourth Proportional to 709,058.96, 978,862.70 and 547,551.44

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Solution

The fourth proportional to 709,058.96, 978,862.70 and 547,551.44 is: 755,900.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,058.96 : 978,862.70 = 547,551.44 : x
  2. Step 2: Convert to fraction form
    709,058.96/978,862.70 = 547,551.44/x
  3. Step 3: Cross multiply
    709,058.96x = 978,862.70 × 547,551.44
  4. Step 4: Simplify right side
    709,058.96x = 535,977,680,947.29
  5. Step 5: Solve for x
    x = 535,977,680,947.29/709,058.96
  6. Step 6: Final answer
    x = 755,900.02

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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.