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Finding the Fourth Proportional to 311,007.52, 429,157.20 and 175,048.48

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Solution

The fourth proportional to 311,007.52, 429,157.20 and 175,048.48 is: 241,548.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,007.52 : 429,157.20 = 175,048.48 : x
  2. Step 2: Convert to fraction form
    311,007.52/429,157.20 = 175,048.48/x
  3. Step 3: Cross multiply
    311,007.52x = 429,157.20 × 175,048.48
  4. Step 4: Simplify right side
    311,007.52x = 75,123,315,541.06
  5. Step 5: Solve for x
    x = 75,123,315,541.06/311,007.52
  6. Step 6: Final answer
    x = 241,548.23

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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.