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Finding the Fourth Proportional to 331,066.76, 456,840.52 and 185,839.28

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Solution

The fourth proportional to 331,066.76, 456,840.52 and 185,839.28 is: 256,440.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,066.76 : 456,840.52 = 185,839.28 : x
  2. Step 2: Convert to fraction form
    331,066.76/456,840.52 = 185,839.28/x
  3. Step 3: Cross multiply
    331,066.76x = 456,840.52 × 185,839.28
  4. Step 4: Simplify right side
    331,066.76x = 84,898,913,311.63
  5. Step 5: Solve for x
    x = 84,898,913,311.63/331,066.76
  6. Step 6: Final answer
    x = 256,440.46

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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.