Home / 447,785.86-617,935.60-243,839.20

Finding the Fourth Proportional to 447,785.86, 617,935.60 and 243,839.20

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Solution

The fourth proportional to 447,785.86, 617,935.60 and 243,839.20 is: 336,493.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,785.86 : 617,935.60 = 243,839.20 : x
  2. Step 2: Convert to fraction form
    447,785.86/617,935.60 = 243,839.20/x
  3. Step 3: Cross multiply
    447,785.86x = 617,935.60 × 243,839.20
  4. Step 4: Simplify right side
    447,785.86x = 150,676,922,355.52
  5. Step 5: Solve for x
    x = 150,676,922,355.52/447,785.86
  6. Step 6: Final answer
    x = 336,493.26

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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.