Home / 689,948.72-1,034,767.56-191,351.60

Finding the Fourth Proportional to 689,948.72, 1,034,767.56 and 191,351.60

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Solution

The fourth proportional to 689,948.72, 1,034,767.56 and 191,351.60 is: 286,984.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,948.72 : 1,034,767.56 = 191,351.60 : x
  2. Step 2: Convert to fraction form
    689,948.72/1,034,767.56 = 191,351.60/x
  3. Step 3: Cross multiply
    689,948.72x = 1,034,767.56 × 191,351.60
  4. Step 4: Simplify right side
    689,948.72x = 198,004,428,234.10
  5. Step 5: Solve for x
    x = 198,004,428,234.10/689,948.72
  6. Step 6: Final answer
    x = 286,984.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.