Home / 1,287,006.60-1,776,282.30-714,230.76

Finding the Fourth Proportional to 1,287,006.60, 1,776,282.30 and 714,230.76

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Solution

The fourth proportional to 1,287,006.60, 1,776,282.30 and 714,230.76 is: 985,756.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,006.60 : 1,776,282.30 = 714,230.76 : x
  2. Step 2: Convert to fraction form
    1,287,006.60/1,776,282.30 = 714,230.76/x
  3. Step 3: Cross multiply
    1,287,006.60x = 1,776,282.30 × 714,230.76
  4. Step 4: Simplify right side
    1,287,006.60x = 1,268,675,457,103.55
  5. Step 5: Solve for x
    x = 1,268,675,457,103.55/1,287,006.60
  6. Step 6: Final answer
    x = 985,756.76

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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.