Home / 1,127,755.30-1,556,158.92-644,351.76

Finding the Fourth Proportional to 1,127,755.30, 1,556,158.92 and 644,351.76

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Solution

The fourth proportional to 1,127,755.30, 1,556,158.92 and 644,351.76 is: 889,123.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,755.30 : 1,556,158.92 = 644,351.76 : x
  2. Step 2: Convert to fraction form
    1,127,755.30/1,556,158.92 = 644,351.76/x
  3. Step 3: Cross multiply
    1,127,755.30x = 1,556,158.92 × 644,351.76
  4. Step 4: Simplify right side
    1,127,755.30x = 1,002,713,738,941.70
  5. Step 5: Solve for x
    x = 1,002,713,738,941.70/1,127,755.30
  6. Step 6: Final answer
    x = 889,123.50

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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.