Home / 919,082.30-1,266,927.90-646,407.14

Finding the Fourth Proportional to 919,082.30, 1,266,927.90 and 646,407.14

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Solution

The fourth proportional to 919,082.30, 1,266,927.90 and 646,407.14 is: 891,053.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,082.30 : 1,266,927.90 = 646,407.14 : x
  2. Step 2: Convert to fraction form
    919,082.30/1,266,927.90 = 646,407.14/x
  3. Step 3: Cross multiply
    919,082.30x = 1,266,927.90 × 646,407.14
  4. Step 4: Simplify right side
    919,082.30x = 818,951,240,425.21
  5. Step 5: Solve for x
    x = 818,951,240,425.21/919,082.30
  6. Step 6: Final answer
    x = 891,053.22

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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.