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Finding the Fourth Proportional to 313,037.85, 431,992.19 and 177,068.87

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Solution

The fourth proportional to 313,037.85, 431,992.19 and 177,068.87 is: 244,355.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,037.85 : 431,992.19 = 177,068.87 : x
  2. Step 2: Convert to fraction form
    313,037.85/431,992.19 = 177,068.87/x
  3. Step 3: Cross multiply
    313,037.85x = 431,992.19 × 177,068.87
  4. Step 4: Simplify right side
    313,037.85x = 76,492,367,214.84
  5. Step 5: Solve for x
    x = 76,492,367,214.84/313,037.85
  6. Step 6: Final answer
    x = 244,355.01

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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.