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Finding the Fourth Proportional to 376,431.78, 564,527.92 and 123,653.62

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Solution

The fourth proportional to 376,431.78, 564,527.92 and 123,653.62 is: 185,441.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,431.78 : 564,527.92 = 123,653.62 : x
  2. Step 2: Convert to fraction form
    376,431.78/564,527.92 = 123,653.62/x
  3. Step 3: Cross multiply
    376,431.78x = 564,527.92 × 123,653.62
  4. Step 4: Simplify right side
    376,431.78x = 69,805,920,899.07
  5. Step 5: Solve for x
    x = 69,805,920,899.07/376,431.78
  6. Step 6: Final answer
    x = 185,441.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.