Home / 986,508.88-1,361,386.92-556,807.12

Finding the Fourth Proportional to 986,508.88, 1,361,386.92 and 556,807.12

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Solution

The fourth proportional to 986,508.88, 1,361,386.92 and 556,807.12 is: 768,396.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,508.88 : 1,361,386.92 = 556,807.12 : x
  2. Step 2: Convert to fraction form
    986,508.88/1,361,386.92 = 556,807.12/x
  3. Step 3: Cross multiply
    986,508.88x = 1,361,386.92 × 556,807.12
  4. Step 4: Simplify right side
    986,508.88x = 758,029,930,130.87
  5. Step 5: Solve for x
    x = 758,029,930,130.87/986,508.88
  6. Step 6: Final answer
    x = 768,396.46

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1.5x scale

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.