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Finding the Fourth Proportional to 579,941.80, 869,912.70 and 537,951.40

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Solution

The fourth proportional to 579,941.80, 869,912.70 and 537,951.40 is: 806,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,941.80 : 869,912.70 = 537,951.40 : x
  2. Step 2: Convert to fraction form
    579,941.80/869,912.70 = 537,951.40/x
  3. Step 3: Cross multiply
    579,941.80x = 869,912.70 × 537,951.40
  4. Step 4: Simplify right side
    579,941.80x = 467,970,754,842.78
  5. Step 5: Solve for x
    x = 467,970,754,842.78/579,941.80
  6. Step 6: Final answer
    x = 806,927.10

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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.