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Finding the Fourth Proportional to 1,965,836.64, 2,948,752.80 and 618,117.24

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Solution

The fourth proportional to 1,965,836.64, 2,948,752.80 and 618,117.24 is: 927,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,836.64 : 2,948,752.80 = 618,117.24 : x
  2. Step 2: Convert to fraction form
    1,965,836.64/2,948,752.80 = 618,117.24/x
  3. Step 3: Cross multiply
    1,965,836.64x = 2,948,752.80 × 618,117.24
  4. Step 4: Simplify right side
    1,965,836.64x = 1,822,674,942,178.27
  5. Step 5: Solve for x
    x = 1,822,674,942,178.27/1,965,836.64
  6. Step 6: Final answer
    x = 927,175.18

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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.