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Finding the Fourth Proportional to 435,900.66, 601,811.28 and 345,621.30

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Solution

The fourth proportional to 435,900.66, 601,811.28 and 345,621.30 is: 477,170.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,900.66 : 601,811.28 = 345,621.30 : x
  2. Step 2: Convert to fraction form
    435,900.66/601,811.28 = 345,621.30/x
  3. Step 3: Cross multiply
    435,900.66x = 601,811.28 × 345,621.30
  4. Step 4: Simplify right side
    435,900.66x = 207,998,796,948.26
  5. Step 5: Solve for x
    x = 207,998,796,948.26/435,900.66
  6. Step 6: Final answer
    x = 477,170.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.