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Finding the Fourth Proportional to 265,307.45, 365,426.89 and 203,936.25

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Solution

The fourth proportional to 265,307.45, 365,426.89 and 203,936.25 is: 280,895.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,307.45 : 365,426.89 = 203,936.25 : x
  2. Step 2: Convert to fraction form
    265,307.45/365,426.89 = 203,936.25/x
  3. Step 3: Cross multiply
    265,307.45x = 365,426.89 × 203,936.25
  4. Step 4: Simplify right side
    265,307.45x = 74,523,788,682.20
  5. Step 5: Solve for x
    x = 74,523,788,682.20/265,307.45
  6. Step 6: Final answer
    x = 280,895.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.