Home / 1,118,425.15-1,543,565.65-635,145.53

Finding the Fourth Proportional to 1,118,425.15, 1,543,565.65 and 635,145.53

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Solution

The fourth proportional to 1,118,425.15, 1,543,565.65 and 635,145.53 is: 876,579.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,118,425.15 : 1,543,565.65 = 635,145.53 : x
  2. Step 2: Convert to fraction form
    1,118,425.15/1,543,565.65 = 635,145.53/x
  3. Step 3: Cross multiply
    1,118,425.15x = 1,543,565.65 × 635,145.53
  4. Step 4: Simplify right side
    1,118,425.15x = 980,388,822,859.04
  5. Step 5: Solve for x
    x = 980,388,822,859.04/1,118,425.15
  6. Step 6: Final answer
    x = 876,579.74

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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.