Home / 1,220,387.32-1,684,134.46-676,521.73

Finding the Fourth Proportional to 1,220,387.32, 1,684,134.46 and 676,521.73

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Solution

The fourth proportional to 1,220,387.32, 1,684,134.46 and 676,521.73 is: 933,599.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,387.32 : 1,684,134.46 = 676,521.73 : x
  2. Step 2: Convert to fraction form
    1,220,387.32/1,684,134.46 = 676,521.73/x
  3. Step 3: Cross multiply
    1,220,387.32x = 1,684,134.46 × 676,521.73
  4. Step 4: Simplify right side
    1,220,387.32x = 1,139,353,561,382.64
  5. Step 5: Solve for x
    x = 1,139,353,561,382.64/1,220,387.32
  6. Step 6: Final answer
    x = 933,599.97

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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.