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Finding the Fourth Proportional to 422,085.94, 582,534.18 and 240,756.30

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Solution

The fourth proportional to 422,085.94, 582,534.18 and 240,756.30 is: 332,275.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,085.94 : 582,534.18 = 240,756.30 : x
  2. Step 2: Convert to fraction form
    422,085.94/582,534.18 = 240,756.30/x
  3. Step 3: Cross multiply
    422,085.94x = 582,534.18 × 240,756.30
  4. Step 4: Simplify right side
    422,085.94x = 140,248,773,800.33
  5. Step 5: Solve for x
    x = 140,248,773,800.33/422,085.94
  6. Step 6: Final answer
    x = 332,275.40

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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.