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Finding the Fourth Proportional to 622,676.60, 934,014.90 and 410,100.20

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Solution

The fourth proportional to 622,676.60, 934,014.90 and 410,100.20 is: 615,150.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,676.60 : 934,014.90 = 410,100.20 : x
  2. Step 2: Convert to fraction form
    622,676.60/934,014.90 = 410,100.20/x
  3. Step 3: Cross multiply
    622,676.60x = 934,014.90 × 410,100.20
  4. Step 4: Simplify right side
    622,676.60x = 383,039,697,292.98
  5. Step 5: Solve for x
    x = 383,039,697,292.98/622,676.60
  6. Step 6: Final answer
    x = 615,150.30

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Double scale
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Similar ratio
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1.5x scale

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.