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Finding the Fourth Proportional to 317,457.88, 437,967.16 and 181,418.85

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Solution

The fourth proportional to 317,457.88, 437,967.16 and 181,418.85 is: 250,286.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,457.88 : 437,967.16 = 181,418.85 : x
  2. Step 2: Convert to fraction form
    317,457.88/437,967.16 = 181,418.85/x
  3. Step 3: Cross multiply
    317,457.88x = 437,967.16 × 181,418.85
  4. Step 4: Simplify right side
    317,457.88x = 79,455,496,315.13
  5. Step 5: Solve for x
    x = 79,455,496,315.13/317,457.88
  6. Step 6: Final answer
    x = 250,286.74

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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.