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Finding the Fourth Proportional to 1,947,656.93, 2,921,526.91 and 668,258.84

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Solution

The fourth proportional to 1,947,656.93, 2,921,526.91 and 668,258.84 is: 1,002,402.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,656.93 : 2,921,526.91 = 668,258.84 : x
  2. Step 2: Convert to fraction form
    1,947,656.93/2,921,526.91 = 668,258.84/x
  3. Step 3: Cross multiply
    1,947,656.93x = 2,921,526.91 × 668,258.84
  4. Step 4: Simplify right side
    1,947,656.93x = 1,952,336,188,285.57
  5. Step 5: Solve for x
    x = 1,952,336,188,285.57/1,947,656.93
  6. Step 6: Final answer
    x = 1,002,402.51

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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.