Home / 347,222.80-479,165.16-196,320.40

Finding the Fourth Proportional to 347,222.80, 479,165.16 and 196,320.40

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Solution

The fourth proportional to 347,222.80, 479,165.16 and 196,320.40 is: 270,920.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,222.80 : 479,165.16 = 196,320.40 : x
  2. Step 2: Convert to fraction form
    347,222.80/479,165.16 = 196,320.40/x
  3. Step 3: Cross multiply
    347,222.80x = 479,165.16 × 196,320.40
  4. Step 4: Simplify right side
    347,222.80x = 94,069,895,877.26
  5. Step 5: Solve for x
    x = 94,069,895,877.26/347,222.80
  6. Step 6: Final answer
    x = 270,920.85

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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.