Home / 886,284.38-1,329,147.72-287,106.53

Finding the Fourth Proportional to 886,284.38, 1,329,147.72 and 287,106.53

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Solution

The fourth proportional to 886,284.38, 1,329,147.72 and 287,106.53 is: 430,569.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,284.38 : 1,329,147.72 = 287,106.53 : x
  2. Step 2: Convert to fraction form
    886,284.38/1,329,147.72 = 287,106.53/x
  3. Step 3: Cross multiply
    886,284.38x = 1,329,147.72 × 287,106.53
  4. Step 4: Simplify right side
    886,284.38x = 381,606,983,100.87
  5. Step 5: Solve for x
    x = 381,606,983,100.87/886,284.38
  6. Step 6: Final answer
    x = 430,569.45

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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.