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Finding the Fourth Proportional to 552,387.51, 762,399.45 and 345,751.74

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Solution

The fourth proportional to 552,387.51, 762,399.45 and 345,751.74 is: 477,202.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,387.51 : 762,399.45 = 345,751.74 : x
  2. Step 2: Convert to fraction form
    552,387.51/762,399.45 = 345,751.74/x
  3. Step 3: Cross multiply
    552,387.51x = 762,399.45 × 345,751.74
  4. Step 4: Simplify right side
    552,387.51x = 263,600,936,412.54
  5. Step 5: Solve for x
    x = 263,600,936,412.54/552,387.51
  6. Step 6: Final answer
    x = 477,202.93

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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.