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Finding the Fourth Proportional to 1,258,599.54, 1,736,879.28 and 714,746.64

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Solution

The fourth proportional to 1,258,599.54, 1,736,879.28 and 714,746.64 is: 986,357.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,599.54 : 1,736,879.28 = 714,746.64 : x
  2. Step 2: Convert to fraction form
    1,258,599.54/1,736,879.28 = 714,746.64/x
  3. Step 3: Cross multiply
    1,258,599.54x = 1,736,879.28 × 714,746.64
  4. Step 4: Simplify right side
    1,258,599.54x = 1,241,428,629,465.62
  5. Step 5: Solve for x
    x = 1,241,428,629,465.62/1,258,599.54
  6. Step 6: Final answer
    x = 986,357.13

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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.