Home / 1,965,780.19-2,949,379.85-686,575.95

Finding the Fourth Proportional to 1,965,780.19, 2,949,379.85 and 686,575.95

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Solution

The fourth proportional to 1,965,780.19, 2,949,379.85 and 686,575.95 is: 1,030,111.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,965,780.19 : 2,949,379.85 = 686,575.95 : x
  2. Step 2: Convert to fraction form
    1,965,780.19/2,949,379.85 = 686,575.95/x
  3. Step 3: Cross multiply
    1,965,780.19x = 2,949,379.85 × 686,575.95
  4. Step 4: Simplify right side
    1,965,780.19x = 2,024,973,272,424.61
  5. Step 5: Solve for x
    x = 2,024,973,272,424.61/1,965,780.19
  6. Step 6: Final answer
    x = 1,030,111.75

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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.