Home / 1,127,754.30-1,556,157.54-644,350.76

Finding the Fourth Proportional to 1,127,754.30, 1,556,157.54 and 644,350.76

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Solution

The fourth proportional to 1,127,754.30, 1,556,157.54 and 644,350.76 is: 889,122.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,754.30 : 1,556,157.54 = 644,350.76 : x
  2. Step 2: Convert to fraction form
    1,127,754.30/1,556,157.54 = 644,350.76/x
  3. Step 3: Cross multiply
    1,127,754.30x = 1,556,157.54 × 644,350.76
  4. Step 4: Simplify right side
    1,127,754.30x = 1,002,711,293,578.73
  5. Step 5: Solve for x
    x = 1,002,711,293,578.73/1,127,754.30
  6. Step 6: Final answer
    x = 889,122.12

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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.