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Finding the Fourth Proportional to 1,258,641.04, 1,736,936.56 and 714,788.16

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Solution

The fourth proportional to 1,258,641.04, 1,736,936.56 and 714,788.16 is: 986,414.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,641.04 : 1,736,936.56 = 714,788.16 : x
  2. Step 2: Convert to fraction form
    1,258,641.04/1,736,936.56 = 714,788.16/x
  3. Step 3: Cross multiply
    1,258,641.04x = 1,736,936.56 × 714,788.16
  4. Step 4: Simplify right side
    1,258,641.04x = 1,241,541,687,759.13
  5. Step 5: Solve for x
    x = 1,241,541,687,759.13/1,258,641.04
  6. Step 6: Final answer
    x = 986,414.43

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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.