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Finding the Fourth Proportional to 1,258,544.46, 1,736,969.07 and 714,815.82

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Solution

The fourth proportional to 1,258,544.46, 1,736,969.07 and 714,815.82 is: 986,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,544.46 : 1,736,969.07 = 714,815.82 : x
  2. Step 2: Convert to fraction form
    1,258,544.46/1,736,969.07 = 714,815.82/x
  3. Step 3: Cross multiply
    1,258,544.46x = 1,736,969.07 × 714,815.82
  4. Step 4: Simplify right side
    1,258,544.46x = 1,241,612,970,086.69
  5. Step 5: Solve for x
    x = 1,241,612,970,086.69/1,258,544.46
  6. Step 6: Final answer
    x = 986,546.77

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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.