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Finding the Fourth Proportional to 580,215.66, 866,352.63 and 519,854.46

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Solution

The fourth proportional to 580,215.66, 866,352.63 and 519,854.46 is: 776,223.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,215.66 : 866,352.63 = 519,854.46 : x
  2. Step 2: Convert to fraction form
    580,215.66/866,352.63 = 519,854.46/x
  3. Step 3: Cross multiply
    580,215.66x = 866,352.63 × 519,854.46
  4. Step 4: Simplify right side
    580,215.66x = 450,377,278,638.23
  5. Step 5: Solve for x
    x = 450,377,278,638.23/580,215.66
  6. Step 6: Final answer
    x = 776,223.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.