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Finding the Fourth Proportional to 317,581.82, 438,246.80 and 188,525.82

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Solution

The fourth proportional to 317,581.82, 438,246.80 and 188,525.82 is: 260,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,581.82 : 438,246.80 = 188,525.82 : x
  2. Step 2: Convert to fraction form
    317,581.82/438,246.80 = 188,525.82/x
  3. Step 3: Cross multiply
    317,581.82x = 438,246.80 × 188,525.82
  4. Step 4: Simplify right side
    317,581.82x = 82,620,837,332.38
  5. Step 5: Solve for x
    x = 82,620,837,332.38/317,581.82
  6. Step 6: Final answer
    x = 260,156.07

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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.