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Finding the Fourth Proportional to 1,569,834.52, 2,166,394.36 and 881,655.33

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Solution

The fourth proportional to 1,569,834.52, 2,166,394.36 and 881,655.33 is: 1,216,697.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,569,834.52 : 2,166,394.36 = 881,655.33 : x
  2. Step 2: Convert to fraction form
    1,569,834.52/2,166,394.36 = 881,655.33/x
  3. Step 3: Cross multiply
    1,569,834.52x = 2,166,394.36 × 881,655.33
  4. Step 4: Simplify right side
    1,569,834.52x = 1,910,013,141,948.88
  5. Step 5: Solve for x
    x = 1,910,013,141,948.88/1,569,834.52
  6. Step 6: Final answer
    x = 1,216,697.12

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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.