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Finding the Fourth Proportional to 403,795.80, 557,262.99 and 222,507.63

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Solution

The fourth proportional to 403,795.80, 557,262.99 and 222,507.63 is: 307,074.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,795.80 : 557,262.99 = 222,507.63 : x
  2. Step 2: Convert to fraction form
    403,795.80/557,262.99 = 222,507.63/x
  3. Step 3: Cross multiply
    403,795.80x = 557,262.99 × 222,507.63
  4. Step 4: Simplify right side
    403,795.80x = 123,995,267,191.61
  5. Step 5: Solve for x
    x = 123,995,267,191.61/403,795.80
  6. Step 6: Final answer
    x = 307,074.19

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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.