Home / 1,178,023.68-1,625,712-641,498.88

Finding the Fourth Proportional to 1,178,023.68, 1,625,712 and 641,498.88

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Solution

The fourth proportional to 1,178,023.68, 1,625,712 and 641,498.88 is: 885,289.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,023.68 : 1,625,712 = 641,498.88 : x
  2. Step 2: Convert to fraction form
    1,178,023.68/1,625,712 = 641,498.88/x
  3. Step 3: Cross multiply
    1,178,023.68x = 1,625,712 × 641,498.88
  4. Step 4: Simplify right side
    1,178,023.68x = 1,042,892,427,202.56
  5. Step 5: Solve for x
    x = 1,042,892,427,202.56/1,178,023.68
  6. Step 6: Final answer
    x = 885,289.87

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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.