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Finding the Fourth Proportional to 330,663.24, 495,988.38 and 109,047.24

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Solution

The fourth proportional to 330,663.24, 495,988.38 and 109,047.24 is: 163,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,663.24 : 495,988.38 = 109,047.24 : x
  2. Step 2: Convert to fraction form
    330,663.24/495,988.38 = 109,047.24/x
  3. Step 3: Cross multiply
    330,663.24x = 495,988.38 × 109,047.24
  4. Step 4: Simplify right side
    330,663.24x = 54,086,163,911.07
  5. Step 5: Solve for x
    x = 54,086,163,911.07/330,663.24
  6. Step 6: Final answer
    x = 163,568.72

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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.