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Finding the Fourth Proportional to 374,086.20, 562,511.70 and 313,260.60

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Solution

The fourth proportional to 374,086.20, 562,511.70 and 313,260.60 is: 471,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,086.20 : 562,511.70 = 313,260.60 : x
  2. Step 2: Convert to fraction form
    374,086.20/562,511.70 = 313,260.60/x
  3. Step 3: Cross multiply
    374,086.20x = 562,511.70 × 313,260.60
  4. Step 4: Simplify right side
    374,086.20x = 176,212,752,649.02
  5. Step 5: Solve for x
    x = 176,212,752,649.02/374,086.20
  6. Step 6: Final answer
    x = 471,048.52

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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.