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Finding the Fourth Proportional to 407,377.68, 610,697.16 and 220,170.48

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Solution

The fourth proportional to 407,377.68, 610,697.16 and 220,170.48 is: 330,056.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,377.68 : 610,697.16 = 220,170.48 : x
  2. Step 2: Convert to fraction form
    407,377.68/610,697.16 = 220,170.48/x
  3. Step 3: Cross multiply
    407,377.68x = 610,697.16 × 220,170.48
  4. Step 4: Simplify right side
    407,377.68x = 134,457,486,851.84
  5. Step 5: Solve for x
    x = 134,457,486,851.84/407,377.68
  6. Step 6: Final answer
    x = 330,056.10

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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.