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Finding the Fourth Proportional to 1,965,833.64, 2,948,748.30 and 618,114.24

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Solution

The fourth proportional to 1,965,833.64, 2,948,748.30 and 618,114.24 is: 927,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,833.64 : 2,948,748.30 = 618,114.24 : x
  2. Step 2: Convert to fraction form
    1,965,833.64/2,948,748.30 = 618,114.24/x
  3. Step 3: Cross multiply
    1,965,833.64x = 2,948,748.30 × 618,114.24
  4. Step 4: Simplify right side
    1,965,833.64x = 1,822,663,314,405.79
  5. Step 5: Solve for x
    x = 1,822,663,314,405.79/1,965,833.64
  6. Step 6: Final answer
    x = 927,170.68

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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.