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Finding the Fourth Proportional to 290,187.72, 400,307.94 and 182,554.92

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Solution

The fourth proportional to 290,187.72, 400,307.94 and 182,554.92 is: 251,830.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,187.72 : 400,307.94 = 182,554.92 : x
  2. Step 2: Convert to fraction form
    290,187.72/400,307.94 = 182,554.92/x
  3. Step 3: Cross multiply
    290,187.72x = 400,307.94 × 182,554.92
  4. Step 4: Simplify right side
    290,187.72x = 73,078,183,962.06
  5. Step 5: Solve for x
    x = 73,078,183,962.06/290,187.72
  6. Step 6: Final answer
    x = 251,830.73

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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.