Home / 1,423,753.40-1,964,813.56-811,964.76

Finding the Fourth Proportional to 1,423,753.40, 1,964,813.56 and 811,964.76

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Solution

The fourth proportional to 1,423,753.40, 1,964,813.56 and 811,964.76 is: 1,120,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,423,753.40 : 1,964,813.56 = 811,964.76 : x
  2. Step 2: Convert to fraction form
    1,423,753.40/1,964,813.56 = 811,964.76/x
  3. Step 3: Cross multiply
    1,423,753.40x = 1,964,813.56 × 811,964.76
  4. Step 4: Simplify right side
    1,423,753.40x = 1,595,359,361,292.18
  5. Step 5: Solve for x
    x = 1,595,359,361,292.18/1,423,753.40
  6. Step 6: Final answer
    x = 1,120,530.68

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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.