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Finding the Fourth Proportional to 374,225.20, 562,720.20 and 313,399.60

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Solution

The fourth proportional to 374,225.20, 562,720.20 and 313,399.60 is: 471,257.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,225.20 : 562,720.20 = 313,399.60 : x
  2. Step 2: Convert to fraction form
    374,225.20/562,720.20 = 313,399.60/x
  3. Step 3: Cross multiply
    374,225.20x = 562,720.20 × 313,399.60
  4. Step 4: Simplify right side
    374,225.20x = 176,356,285,591.92
  5. Step 5: Solve for x
    x = 176,356,285,591.92/374,225.20
  6. Step 6: Final answer
    x = 471,257.11

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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.