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Finding the Fourth Proportional to 403,402.48, 556,695.48 and 222,115.12

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Solution

The fourth proportional to 403,402.48, 556,695.48 and 222,115.12 is: 306,518.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,402.48 : 556,695.48 = 222,115.12 : x
  2. Step 2: Convert to fraction form
    403,402.48/556,695.48 = 222,115.12/x
  3. Step 3: Cross multiply
    403,402.48x = 556,695.48 × 222,115.12
  4. Step 4: Simplify right side
    403,402.48x = 123,650,483,343.66
  5. Step 5: Solve for x
    x = 123,650,483,343.66/403,402.48
  6. Step 6: Final answer
    x = 306,518.90

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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.