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Finding the Fourth Proportional to 393,774.73, 543,182.67 and 248,528.88

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Solution

The fourth proportional to 393,774.73, 543,182.67 and 248,528.88 is: 342,826.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,774.73 : 543,182.67 = 248,528.88 : x
  2. Step 2: Convert to fraction form
    393,774.73/543,182.67 = 248,528.88/x
  3. Step 3: Cross multiply
    393,774.73x = 543,182.67 × 248,528.88
  4. Step 4: Simplify right side
    393,774.73x = 134,996,580,610.51
  5. Step 5: Solve for x
    x = 134,996,580,610.51/393,774.73
  6. Step 6: Final answer
    x = 342,826.93

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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.