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Finding the Fourth Proportional to 290,350.71, 400,646.82 and 169,464.27

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Solution

The fourth proportional to 290,350.71, 400,646.82 and 169,464.27 is: 233,839.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,350.71 : 400,646.82 = 169,464.27 : x
  2. Step 2: Convert to fraction form
    290,350.71/400,646.82 = 169,464.27/x
  3. Step 3: Cross multiply
    290,350.71x = 400,646.82 × 169,464.27
  4. Step 4: Simplify right side
    290,350.71x = 67,895,320,879.12
  5. Step 5: Solve for x
    x = 67,895,320,879.12/290,350.71
  6. Step 6: Final answer
    x = 233,839.00

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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.