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Finding the Fourth Proportional to 418,368.87, 577,353.56 and 227,382.30

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Solution

The fourth proportional to 418,368.87, 577,353.56 and 227,382.30 is: 313,790.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,368.87 : 577,353.56 = 227,382.30 : x
  2. Step 2: Convert to fraction form
    418,368.87/577,353.56 = 227,382.30/x
  3. Step 3: Cross multiply
    418,368.87x = 577,353.56 × 227,382.30
  4. Step 4: Simplify right side
    418,368.87x = 131,279,979,249.08
  5. Step 5: Solve for x
    x = 131,279,979,249.08/418,368.87
  6. Step 6: Final answer
    x = 313,790.03

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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.