Home / 1,272,744.85-1,756,424.41-776,057.86

Finding the Fourth Proportional to 1,272,744.85, 1,756,424.41 and 776,057.86

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Solution

The fourth proportional to 1,272,744.85, 1,756,424.41 and 776,057.86 is: 1,070,982.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,744.85 : 1,756,424.41 = 776,057.86 : x
  2. Step 2: Convert to fraction form
    1,272,744.85/1,756,424.41 = 776,057.86/x
  3. Step 3: Cross multiply
    1,272,744.85x = 1,756,424.41 × 776,057.86
  4. Step 4: Simplify right side
    1,272,744.85x = 1,363,086,966,425.45
  5. Step 5: Solve for x
    x = 1,363,086,966,425.45/1,272,744.85
  6. Step 6: Final answer
    x = 1,070,982.11

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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.