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Finding the Fourth Proportional to 319,025.52, 440,274.88 and 175,785.54

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Solution

The fourth proportional to 319,025.52, 440,274.88 and 175,785.54 is: 242,594.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,025.52 : 440,274.88 = 175,785.54 : x
  2. Step 2: Convert to fraction form
    319,025.52/440,274.88 = 175,785.54/x
  3. Step 3: Cross multiply
    319,025.52x = 440,274.88 × 175,785.54
  4. Step 4: Simplify right side
    319,025.52x = 77,393,957,529.24
  5. Step 5: Solve for x
    x = 77,393,957,529.24/319,025.52
  6. Step 6: Final answer
    x = 242,594.88

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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.