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Finding the Fourth Proportional to 317,634.94, 438,211.19 and 181,595.79

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Solution

The fourth proportional to 317,634.94, 438,211.19 and 181,595.79 is: 250,530.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,634.94 : 438,211.19 = 181,595.79 : x
  2. Step 2: Convert to fraction form
    317,634.94/438,211.19 = 181,595.79/x
  3. Step 3: Cross multiply
    317,634.94x = 438,211.19 × 181,595.79
  4. Step 4: Simplify right side
    317,634.94x = 79,577,307,234.89
  5. Step 5: Solve for x
    x = 79,577,307,234.89/317,634.94
  6. Step 6: Final answer
    x = 250,530.71

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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.