Home / 447,784.86-617,934.22-243,838.20

Finding the Fourth Proportional to 447,784.86, 617,934.22 and 243,838.20

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Solution

The fourth proportional to 447,784.86, 617,934.22 and 243,838.20 is: 336,491.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,784.86 : 617,934.22 = 243,838.20 : x
  2. Step 2: Convert to fraction form
    447,784.86/617,934.22 = 243,838.20/x
  3. Step 3: Cross multiply
    447,784.86x = 617,934.22 × 243,838.20
  4. Step 4: Simplify right side
    447,784.86x = 150,675,967,923.20
  5. Step 5: Solve for x
    x = 150,675,967,923.20/447,784.86
  6. Step 6: Final answer
    x = 336,491.88

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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.