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Finding the Fourth Proportional to 1,266,787.95, 1,748,149.32 and 723,095.97

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Solution

The fourth proportional to 1,266,787.95, 1,748,149.32 and 723,095.97 is: 997,862.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266,787.95 : 1,748,149.32 = 723,095.97 : x
  2. Step 2: Convert to fraction form
    1,266,787.95/1,748,149.32 = 723,095.97/x
  3. Step 3: Cross multiply
    1,266,787.95x = 1,748,149.32 × 723,095.97
  4. Step 4: Simplify right side
    1,266,787.95x = 1,264,079,728,250.24
  5. Step 5: Solve for x
    x = 1,264,079,728,250.24/1,266,787.95
  6. Step 6: Final answer
    x = 997,862.13

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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.