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Finding the Fourth Proportional to 420,536.08, 580,253.16 and 241,653.52

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Solution

The fourth proportional to 420,536.08, 580,253.16 and 241,653.52 is: 333,432.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,536.08 : 580,253.16 = 241,653.52 : x
  2. Step 2: Convert to fraction form
    420,536.08/580,253.16 = 241,653.52/x
  3. Step 3: Cross multiply
    420,536.08x = 580,253.16 × 241,653.52
  4. Step 4: Simplify right side
    420,536.08x = 140,220,218,605.12
  5. Step 5: Solve for x
    x = 140,220,218,605.12/420,536.08
  6. Step 6: Final answer
    x = 333,432.08

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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.