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Finding the Fourth Proportional to 406,454.51, 560,907.15 and 225,178.22

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Solution

The fourth proportional to 406,454.51, 560,907.15 and 225,178.22 is: 310,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,454.51 : 560,907.15 = 225,178.22 : x
  2. Step 2: Convert to fraction form
    406,454.51/560,907.15 = 225,178.22/x
  3. Step 3: Cross multiply
    406,454.51x = 560,907.15 × 225,178.22
  4. Step 4: Simplify right side
    406,454.51x = 126,304,073,622.27
  5. Step 5: Solve for x
    x = 126,304,073,622.27/406,454.51
  6. Step 6: Final answer
    x = 310,745.90

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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.