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Finding the Fourth Proportional to 495,995.52, 684,527.34 and 281,112.52

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Solution

The fourth proportional to 495,995.52, 684,527.34 and 281,112.52 is: 387,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,995.52 : 684,527.34 = 281,112.52 : x
  2. Step 2: Convert to fraction form
    495,995.52/684,527.34 = 281,112.52/x
  3. Step 3: Cross multiply
    495,995.52x = 684,527.34 × 281,112.52
  4. Step 4: Simplify right side
    495,995.52x = 192,429,205,556.30
  5. Step 5: Solve for x
    x = 192,429,205,556.30/495,995.52
  6. Step 6: Final answer
    x = 387,965.61

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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.