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Finding the Fourth Proportional to 1,136,862.44, 1,569,133.92 and 749,747.72

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Solution

The fourth proportional to 1,136,862.44, 1,569,133.92 and 749,747.72 is: 1,034,825.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,862.44 : 1,569,133.92 = 749,747.72 : x
  2. Step 2: Convert to fraction form
    1,136,862.44/1,569,133.92 = 749,747.72/x
  3. Step 3: Cross multiply
    1,136,862.44x = 1,569,133.92 × 749,747.72
  4. Step 4: Simplify right side
    1,136,862.44x = 1,176,454,578,894.66
  5. Step 5: Solve for x
    x = 1,176,454,578,894.66/1,136,862.44
  6. Step 6: Final answer
    x = 1,034,825.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.