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Finding the Fourth Proportional to 404,869.20, 607,012.20 and 227,430.60

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Solution

The fourth proportional to 404,869.20, 607,012.20 and 227,430.60 is: 340,982.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,869.20 : 607,012.20 = 227,430.60 : x
  2. Step 2: Convert to fraction form
    404,869.20/607,012.20 = 227,430.60/x
  3. Step 3: Cross multiply
    404,869.20x = 607,012.20 × 227,430.60
  4. Step 4: Simplify right side
    404,869.20x = 138,053,148,853.32
  5. Step 5: Solve for x
    x = 138,053,148,853.32/404,869.20
  6. Step 6: Final answer
    x = 340,982.10

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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.