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Finding the Fourth Proportional to 404,761.20, 607,141.80 and 194,809.20

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Solution

The fourth proportional to 404,761.20, 607,141.80 and 194,809.20 is: 292,213.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,761.20 : 607,141.80 = 194,809.20 : x
  2. Step 2: Convert to fraction form
    404,761.20/607,141.80 = 194,809.20/x
  3. Step 3: Cross multiply
    404,761.20x = 607,141.80 × 194,809.20
  4. Step 4: Simplify right side
    404,761.20x = 118,276,808,344.56
  5. Step 5: Solve for x
    x = 118,276,808,344.56/404,761.20
  6. Step 6: Final answer
    x = 292,213.80

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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.