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Finding the Fourth Proportional to 403,455.71, 556,768.82 and 222,167.19

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Solution

The fourth proportional to 403,455.71, 556,768.82 and 222,167.19 is: 306,590.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,455.71 : 556,768.82 = 222,167.19 : x
  2. Step 2: Convert to fraction form
    403,455.71/556,768.82 = 222,167.19/x
  3. Step 3: Cross multiply
    403,455.71x = 556,768.82 × 222,167.19
  4. Step 4: Simplify right side
    403,455.71x = 123,695,763,108.18
  5. Step 5: Solve for x
    x = 123,695,763,108.18/403,455.71
  6. Step 6: Final answer
    x = 306,590.69

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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.