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Finding the Fourth Proportional to 407,246.80, 610,870.20 and 344,261.20

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Solution

The fourth proportional to 407,246.80, 610,870.20 and 344,261.20 is: 516,391.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,246.80 : 610,870.20 = 344,261.20 : x
  2. Step 2: Convert to fraction form
    407,246.80/610,870.20 = 344,261.20/x
  3. Step 3: Cross multiply
    407,246.80x = 610,870.20 × 344,261.20
  4. Step 4: Simplify right side
    407,246.80x = 210,298,908,096.24
  5. Step 5: Solve for x
    x = 210,298,908,096.24/407,246.80
  6. Step 6: Final answer
    x = 516,391.80

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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.