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Finding the Fourth Proportional to 613,466, 920,346.68 and 192,741.72

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Solution

The fourth proportional to 613,466, 920,346.68 and 192,741.72 is: 289,158.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,466 : 920,346.68 = 192,741.72 : x
  2. Step 2: Convert to fraction form
    613,466/920,346.68 = 192,741.72/x
  3. Step 3: Cross multiply
    613,466x = 920,346.68 × 192,741.72
  4. Step 4: Simplify right side
    613,466x = 177,389,202,099.49
  5. Step 5: Solve for x
    x = 177,389,202,099.49/613,466
  6. Step 6: Final answer
    x = 289,158.98

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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.