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Finding the Fourth Proportional to 403,355.67, 556,609.68 and 222,032.18

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Solution

The fourth proportional to 403,355.67, 556,609.68 and 222,032.18 is: 306,392.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,355.67 : 556,609.68 = 222,032.18 : x
  2. Step 2: Convert to fraction form
    403,355.67/556,609.68 = 222,032.18/x
  3. Step 3: Cross multiply
    403,355.67x = 556,609.68 × 222,032.18
  4. Step 4: Simplify right side
    403,355.67x = 123,585,257,876.45
  5. Step 5: Solve for x
    x = 123,585,257,876.45/403,355.67
  6. Step 6: Final answer
    x = 306,392.76

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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.