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Finding the Fourth Proportional to 622,817.60, 934,226.40 and 498,401.60

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Solution

The fourth proportional to 622,817.60, 934,226.40 and 498,401.60 is: 747,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,817.60 : 934,226.40 = 498,401.60 : x
  2. Step 2: Convert to fraction form
    622,817.60/934,226.40 = 498,401.60/x
  3. Step 3: Cross multiply
    622,817.60x = 934,226.40 × 498,401.60
  4. Step 4: Simplify right side
    622,817.60x = 465,619,932,522.24
  5. Step 5: Solve for x
    x = 465,619,932,522.24/622,817.60
  6. Step 6: Final answer
    x = 747,602.40

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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.