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Finding the Fourth Proportional to 583,486.80, 876,542.40 and 561,179.40

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Solution

The fourth proportional to 583,486.80, 876,542.40 and 561,179.40 is: 843,031.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,486.80 : 876,542.40 = 561,179.40 : x
  2. Step 2: Convert to fraction form
    583,486.80/876,542.40 = 561,179.40/x
  3. Step 3: Cross multiply
    583,486.80x = 876,542.40 × 561,179.40
  4. Step 4: Simplify right side
    583,486.80x = 491,897,538,106.56
  5. Step 5: Solve for x
    x = 491,897,538,106.56/583,486.80
  6. Step 6: Final answer
    x = 843,031.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.