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Finding the Fourth Proportional to 410,626.67, 615,940.01 and 154,507.40

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Solution

The fourth proportional to 410,626.67, 615,940.01 and 154,507.40 is: 231,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,626.67 : 615,940.01 = 154,507.40 : x
  2. Step 2: Convert to fraction form
    410,626.67/615,940.01 = 154,507.40/x
  3. Step 3: Cross multiply
    410,626.67x = 615,940.01 × 154,507.40
  4. Step 4: Simplify right side
    410,626.67x = 95,167,289,501.07
  5. Step 5: Solve for x
    x = 95,167,289,501.07/410,626.67
  6. Step 6: Final answer
    x = 231,761.10

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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.