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Finding the Fourth Proportional to 404,909.20, 607,072.20 and 227,470.60

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Solution

The fourth proportional to 404,909.20, 607,072.20 and 227,470.60 is: 341,042.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,909.20 : 607,072.20 = 227,470.60 : x
  2. Step 2: Convert to fraction form
    404,909.20/607,072.20 = 227,470.60/x
  3. Step 3: Cross multiply
    404,909.20x = 607,072.20 × 227,470.60
  4. Step 4: Simplify right side
    404,909.20x = 138,091,077,577.32
  5. Step 5: Solve for x
    x = 138,091,077,577.32/404,909.20
  6. Step 6: Final answer
    x = 341,042.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.