Home / 415,454.20-573,401.46-396,522.12

Finding the Fourth Proportional to 415,454.20, 573,401.46 and 396,522.12

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Solution

The fourth proportional to 415,454.20, 573,401.46 and 396,522.12 is: 547,271.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,454.20 : 573,401.46 = 396,522.12 : x
  2. Step 2: Convert to fraction form
    415,454.20/573,401.46 = 396,522.12/x
  3. Step 3: Cross multiply
    415,454.20x = 573,401.46 × 396,522.12
  4. Step 4: Simplify right side
    415,454.20x = 227,366,362,530.30
  5. Step 5: Solve for x
    x = 227,366,362,530.30/415,454.20
  6. Step 6: Final answer
    x = 547,271.79

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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.