Home / 1,287,534.74-1,776,715.17-714,575.30

Finding the Fourth Proportional to 1,287,534.74, 1,776,715.17 and 714,575.30

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Solution

The fourth proportional to 1,287,534.74, 1,776,715.17 and 714,575.30 is: 986,067.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,534.74 : 1,776,715.17 = 714,575.30 : x
  2. Step 2: Convert to fraction form
    1,287,534.74/1,776,715.17 = 714,575.30/x
  3. Step 3: Cross multiply
    1,287,534.74x = 1,776,715.17 × 714,575.30
  4. Step 4: Simplify right side
    1,287,534.74x = 1,269,596,775,617.30
  5. Step 5: Solve for x
    x = 1,269,596,775,617.30/1,287,534.74
  6. Step 6: Final answer
    x = 986,067.98

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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.