Home / 1,225,584.59-1,691,306.69-689,040.59

Finding the Fourth Proportional to 1,225,584.59, 1,691,306.69 and 689,040.59

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Solution

The fourth proportional to 1,225,584.59, 1,691,306.69 and 689,040.59 is: 950,875.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,584.59 : 1,691,306.69 = 689,040.59 : x
  2. Step 2: Convert to fraction form
    1,225,584.59/1,691,306.69 = 689,040.59/x
  3. Step 3: Cross multiply
    1,225,584.59x = 1,691,306.69 × 689,040.59
  4. Step 4: Simplify right side
    1,225,584.59x = 1,165,378,947,646.81
  5. Step 5: Solve for x
    x = 1,165,378,947,646.81/1,225,584.59
  6. Step 6: Final answer
    x = 950,875.98

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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.