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Finding the Fourth Proportional to 613,912.22, 920,170.02 and 373,496.16

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Solution

The fourth proportional to 613,912.22, 920,170.02 and 373,496.16 is: 559,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,912.22 : 920,170.02 = 373,496.16 : x
  2. Step 2: Convert to fraction form
    613,912.22/920,170.02 = 373,496.16/x
  3. Step 3: Cross multiply
    613,912.22x = 920,170.02 × 373,496.16
  4. Step 4: Simplify right side
    613,912.22x = 343,679,969,017.12
  5. Step 5: Solve for x
    x = 343,679,969,017.12/613,912.22
  6. Step 6: Final answer
    x = 559,819.40

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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.