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Finding the Fourth Proportional to 580,359.12, 865,826 and 548,970

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Solution

The fourth proportional to 580,359.12, 865,826 and 548,970 is: 818,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,359.12 : 865,826 = 548,970 : x
  2. Step 2: Convert to fraction form
    580,359.12/865,826 = 548,970/x
  3. Step 3: Cross multiply
    580,359.12x = 865,826 × 548,970
  4. Step 4: Simplify right side
    580,359.12x = 475,312,499,220
  5. Step 5: Solve for x
    x = 475,312,499,220/580,359.12
  6. Step 6: Final answer
    x = 818,997.21

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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.