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Finding the Fourth Proportional to 352,108.32, 485,274.96 and 256,463.52

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Solution

The fourth proportional to 352,108.32, 485,274.96 and 256,463.52 is: 353,457.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,108.32 : 485,274.96 = 256,463.52 : x
  2. Step 2: Convert to fraction form
    352,108.32/485,274.96 = 256,463.52/x
  3. Step 3: Cross multiply
    352,108.32x = 485,274.96 × 256,463.52
  4. Step 4: Simplify right side
    352,108.32x = 124,455,324,409.46
  5. Step 5: Solve for x
    x = 124,455,324,409.46/352,108.32
  6. Step 6: Final answer
    x = 353,457.49

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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.