Home / 447,657.20-617,751.90-243,704.28

Finding the Fourth Proportional to 447,657.20, 617,751.90 and 243,704.28

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Solution

The fourth proportional to 447,657.20, 617,751.90 and 243,704.28 is: 336,303.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,657.20 : 617,751.90 = 243,704.28 : x
  2. Step 2: Convert to fraction form
    447,657.20/617,751.90 = 243,704.28/x
  3. Step 3: Cross multiply
    447,657.20x = 617,751.90 × 243,704.28
  4. Step 4: Simplify right side
    447,657.20x = 150,548,782,008.13
  5. Step 5: Solve for x
    x = 150,548,782,008.13/447,657.20
  6. Step 6: Final answer
    x = 336,303.72

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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.