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Finding the Fourth Proportional to 415,237.60, 622,856.40 and 310,261.60

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Solution

The fourth proportional to 415,237.60, 622,856.40 and 310,261.60 is: 465,392.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,237.60 : 622,856.40 = 310,261.60 : x
  2. Step 2: Convert to fraction form
    415,237.60/622,856.40 = 310,261.60/x
  3. Step 3: Cross multiply
    415,237.60x = 622,856.40 × 310,261.60
  4. Step 4: Simplify right side
    415,237.60x = 193,248,423,234.24
  5. Step 5: Solve for x
    x = 193,248,423,234.24/415,237.60
  6. Step 6: Final answer
    x = 465,392.40

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.