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Finding the Fourth Proportional to 624,330.20, 934,421.70 and 437,706.20

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Solution

The fourth proportional to 624,330.20, 934,421.70 and 437,706.20 is: 655,105.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,330.20 : 934,421.70 = 437,706.20 : x
  2. Step 2: Convert to fraction form
    624,330.20/934,421.70 = 437,706.20/x
  3. Step 3: Cross multiply
    624,330.20x = 934,421.70 × 437,706.20
  4. Step 4: Simplify right side
    624,330.20x = 409,002,171,504.54
  5. Step 5: Solve for x
    x = 409,002,171,504.54/624,330.20
  6. Step 6: Final answer
    x = 655,105.54

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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.