Home / 525,679.43-788,519.06-126,320.20

Finding the Fourth Proportional to 525,679.43, 788,519.06 and 126,320.20

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Solution

The fourth proportional to 525,679.43, 788,519.06 and 126,320.20 is: 189,480.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,679.43 : 788,519.06 = 126,320.20 : x
  2. Step 2: Convert to fraction form
    525,679.43/788,519.06 = 126,320.20/x
  3. Step 3: Cross multiply
    525,679.43x = 788,519.06 × 126,320.20
  4. Step 4: Simplify right side
    525,679.43x = 99,605,882,760.11
  5. Step 5: Solve for x
    x = 99,605,882,760.11/525,679.43
  6. Step 6: Final answer
    x = 189,480.28

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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.