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Finding the Fourth Proportional to 290,368.17, 400,853.75 and 181,532.97

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Solution

The fourth proportional to 290,368.17, 400,853.75 and 181,532.97 is: 250,606.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,368.17 : 400,853.75 = 181,532.97 : x
  2. Step 2: Convert to fraction form
    290,368.17/400,853.75 = 181,532.97/x
  3. Step 3: Cross multiply
    290,368.17x = 400,853.75 × 181,532.97
  4. Step 4: Simplify right side
    290,368.17x = 72,768,171,773.14
  5. Step 5: Solve for x
    x = 72,768,171,773.14/290,368.17
  6. Step 6: Final answer
    x = 250,606.57

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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.