Home / 1,207,301.28-1,666,107-663,452.16

Finding the Fourth Proportional to 1,207,301.28, 1,666,107 and 663,452.16

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Solution

The fourth proportional to 1,207,301.28, 1,666,107 and 663,452.16 is: 915,581.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,301.28 : 1,666,107 = 663,452.16 : x
  2. Step 2: Convert to fraction form
    1,207,301.28/1,666,107 = 663,452.16/x
  3. Step 3: Cross multiply
    1,207,301.28x = 1,666,107 × 663,452.16
  4. Step 4: Simplify right side
    1,207,301.28x = 1,105,382,287,941.12
  5. Step 5: Solve for x
    x = 1,105,382,287,941.12/1,207,301.28
  6. Step 6: Final answer
    x = 915,581.14

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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.