Home / 349,289.20-523,933.80-86,633.20

Finding the Fourth Proportional to 349,289.20, 523,933.80 and 86,633.20

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Solution

The fourth proportional to 349,289.20, 523,933.80 and 86,633.20 is: 129,949.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,289.20 : 523,933.80 = 86,633.20 : x
  2. Step 2: Convert to fraction form
    349,289.20/523,933.80 = 86,633.20/x
  3. Step 3: Cross multiply
    349,289.20x = 523,933.80 × 86,633.20
  4. Step 4: Simplify right side
    349,289.20x = 45,390,061,682.16
  5. Step 5: Solve for x
    x = 45,390,061,682.16/349,289.20
  6. Step 6: Final answer
    x = 129,949.80

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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.