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Finding the Fourth Proportional to 622,991.10, 934,486.65 and 410,414.70

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Solution

The fourth proportional to 622,991.10, 934,486.65 and 410,414.70 is: 615,622.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,991.10 : 934,486.65 = 410,414.70 : x
  2. Step 2: Convert to fraction form
    622,991.10/934,486.65 = 410,414.70/x
  3. Step 3: Cross multiply
    622,991.10x = 934,486.65 × 410,414.70
  4. Step 4: Simplify right side
    622,991.10x = 383,527,058,113.76
  5. Step 5: Solve for x
    x = 383,527,058,113.76/622,991.10
  6. Step 6: Final answer
    x = 615,622.05

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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.