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Finding the Fourth Proportional to 1,349,787.84, 1,862,642.88 and 737,972.16

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Solution

The fourth proportional to 1,349,787.84, 1,862,642.88 and 737,972.16 is: 1,018,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,787.84 : 1,862,642.88 = 737,972.16 : x
  2. Step 2: Convert to fraction form
    1,349,787.84/1,862,642.88 = 737,972.16/x
  3. Step 3: Cross multiply
    1,349,787.84x = 1,862,642.88 × 737,972.16
  4. Step 4: Simplify right side
    1,349,787.84x = 1,374,578,589,462.22
  5. Step 5: Solve for x
    x = 1,374,578,589,462.22/1,349,787.84
  6. Step 6: Final answer
    x = 1,018,366.40

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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.