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Finding the Fourth Proportional to 1,192,531.36, 1,788,797.04 and 817,417.12

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Solution

The fourth proportional to 1,192,531.36, 1,788,797.04 and 817,417.12 is: 1,226,125.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,531.36 : 1,788,797.04 = 817,417.12 : x
  2. Step 2: Convert to fraction form
    1,192,531.36/1,788,797.04 = 817,417.12/x
  3. Step 3: Cross multiply
    1,192,531.36x = 1,788,797.04 × 817,417.12
  4. Step 4: Simplify right side
    1,192,531.36x = 1,462,193,324,701.32
  5. Step 5: Solve for x
    x = 1,462,193,324,701.32/1,192,531.36
  6. Step 6: Final answer
    x = 1,226,125.68

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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.