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Finding the Fourth Proportional to 1,766,631.61, 2,437,952.03 and 961,815.61

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Solution

The fourth proportional to 1,766,631.61, 2,437,952.03 and 961,815.61 is: 1,327,305.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,766,631.61 : 2,437,952.03 = 961,815.61 : x
  2. Step 2: Convert to fraction form
    1,766,631.61/2,437,952.03 = 961,815.61/x
  3. Step 3: Cross multiply
    1,766,631.61x = 2,437,952.03 × 961,815.61
  4. Step 4: Simplify right side
    1,766,631.61x = 2,344,860,318,885.19
  5. Step 5: Solve for x
    x = 2,344,860,318,885.19/1,766,631.61
  6. Step 6: Final answer
    x = 1,327,305.76

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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.