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Finding the Fourth Proportional to 323,808.30, 485,712.45 and 183,840.30

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Solution

The fourth proportional to 323,808.30, 485,712.45 and 183,840.30 is: 275,760.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,808.30 : 485,712.45 = 183,840.30 : x
  2. Step 2: Convert to fraction form
    323,808.30/485,712.45 = 183,840.30/x
  3. Step 3: Cross multiply
    323,808.30x = 485,712.45 × 183,840.30
  4. Step 4: Simplify right side
    323,808.30x = 89,293,522,521.74
  5. Step 5: Solve for x
    x = 89,293,522,521.74/323,808.30
  6. Step 6: Final answer
    x = 275,760.45

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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.