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Finding the Fourth Proportional to 415,045.60, 622,568.40 and 310,069.60

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Solution

The fourth proportional to 415,045.60, 622,568.40 and 310,069.60 is: 465,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,045.60 : 622,568.40 = 310,069.60 : x
  2. Step 2: Convert to fraction form
    415,045.60/622,568.40 = 310,069.60/x
  3. Step 3: Cross multiply
    415,045.60x = 622,568.40 × 310,069.60
  4. Step 4: Simplify right side
    415,045.60x = 193,039,534,760.64
  5. Step 5: Solve for x
    x = 193,039,534,760.64/415,045.60
  6. Step 6: Final answer
    x = 465,104.40

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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.