Home / 930,619.87-1,284,227.38-517,155.25

Finding the Fourth Proportional to 930,619.87, 1,284,227.38 and 517,155.25

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Solution

The fourth proportional to 930,619.87, 1,284,227.38 and 517,155.25 is: 713,658.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,619.87 : 1,284,227.38 = 517,155.25 : x
  2. Step 2: Convert to fraction form
    930,619.87/1,284,227.38 = 517,155.25/x
  3. Step 3: Cross multiply
    930,619.87x = 1,284,227.38 × 517,155.25
  4. Step 4: Simplify right side
    930,619.87x = 664,144,931,760.75
  5. Step 5: Solve for x
    x = 664,144,931,760.75/930,619.87
  6. Step 6: Final answer
    x = 713,658.66

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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.