Home / 1,256,023.38-1,732,673.19-820,695.21

Finding the Fourth Proportional to 1,256,023.38, 1,732,673.19 and 820,695.21

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Solution

The fourth proportional to 1,256,023.38, 1,732,673.19 and 820,695.21 is: 1,132,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,256,023.38 : 1,732,673.19 = 820,695.21 : x
  2. Step 2: Convert to fraction form
    1,256,023.38/1,732,673.19 = 820,695.21/x
  3. Step 3: Cross multiply
    1,256,023.38x = 1,732,673.19 × 820,695.21
  4. Step 4: Simplify right side
    1,256,023.38x = 1,421,996,587,528.42
  5. Step 5: Solve for x
    x = 1,421,996,587,528.42/1,256,023.38
  6. Step 6: Final answer
    x = 1,132,141.81

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1.5x scale

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.