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Finding the Fourth Proportional to 1,169,721.57, 1,754,582.36 and 495,787.80

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Solution

The fourth proportional to 1,169,721.57, 1,754,582.36 and 495,787.80 is: 743,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,169,721.57 : 1,754,582.36 = 495,787.80 : x
  2. Step 2: Convert to fraction form
    1,169,721.57/1,754,582.36 = 495,787.80/x
  3. Step 3: Cross multiply
    1,169,721.57x = 1,754,582.36 × 495,787.80
  4. Step 4: Simplify right side
    1,169,721.57x = 869,900,525,704.27
  5. Step 5: Solve for x
    x = 869,900,525,704.27/1,169,721.57
  6. Step 6: Final answer
    x = 743,681.70

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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.