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Finding the Fourth Proportional to 1,258,927.54, 1,888,949.46 and 659,746.24

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Solution

The fourth proportional to 1,258,927.54, 1,888,949.46 and 659,746.24 is: 989,911.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,927.54 : 1,888,949.46 = 659,746.24 : x
  2. Step 2: Convert to fraction form
    1,258,927.54/1,888,949.46 = 659,746.24/x
  3. Step 3: Cross multiply
    1,258,927.54x = 1,888,949.46 × 659,746.24
  4. Step 4: Simplify right side
    1,258,927.54x = 1,246,227,303,785.03
  5. Step 5: Solve for x
    x = 1,246,227,303,785.03/1,258,927.54
  6. Step 6: Final answer
    x = 989,911.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.