Home / 1,211,776.30-1,672,242.05-667,913.14

Finding the Fourth Proportional to 1,211,776.30, 1,672,242.05 and 667,913.14

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Solution

The fourth proportional to 1,211,776.30, 1,672,242.05 and 667,913.14 is: 921,715.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,776.30 : 1,672,242.05 = 667,913.14 : x
  2. Step 2: Convert to fraction form
    1,211,776.30/1,672,242.05 = 667,913.14/x
  3. Step 3: Cross multiply
    1,211,776.30x = 1,672,242.05 × 667,913.14
  4. Step 4: Simplify right side
    1,211,776.30x = 1,116,912,426,754.76
  5. Step 5: Solve for x
    x = 1,116,912,426,754.76/1,211,776.30
  6. Step 6: Final answer
    x = 921,715.03

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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.