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Finding the Fourth Proportional to 656,401.32, 984,602.10 and 207,157.14

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Solution

The fourth proportional to 656,401.32, 984,602.10 and 207,157.14 is: 310,735.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,401.32 : 984,602.10 = 207,157.14 : x
  2. Step 2: Convert to fraction form
    656,401.32/984,602.10 = 207,157.14/x
  3. Step 3: Cross multiply
    656,401.32x = 984,602.10 × 207,157.14
  4. Step 4: Simplify right side
    656,401.32x = 203,967,355,073.99
  5. Step 5: Solve for x
    x = 203,967,355,073.99/656,401.32
  6. Step 6: Final answer
    x = 310,735.75

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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.