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Finding the Fourth Proportional to 484,388.40, 725,200.20 and 297,764.40

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Solution

The fourth proportional to 484,388.40, 725,200.20 and 297,764.40 is: 445,796.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,388.40 : 725,200.20 = 297,764.40 : x
  2. Step 2: Convert to fraction form
    484,388.40/725,200.20 = 297,764.40/x
  3. Step 3: Cross multiply
    484,388.40x = 725,200.20 × 297,764.40
  4. Step 4: Simplify right side
    484,388.40x = 215,938,802,432.88
  5. Step 5: Solve for x
    x = 215,938,802,432.88/484,388.40
  6. Step 6: Final answer
    x = 445,796.81

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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.