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Finding the Fourth Proportional to 319,040.52, 440,295.58 and 175,800.54

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Solution

The fourth proportional to 319,040.52, 440,295.58 and 175,800.54 is: 242,615.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,040.52 : 440,295.58 = 175,800.54 : x
  2. Step 2: Convert to fraction form
    319,040.52/440,295.58 = 175,800.54/x
  3. Step 3: Cross multiply
    319,040.52x = 440,295.58 × 175,800.54
  4. Step 4: Simplify right side
    319,040.52x = 77,404,200,723.61
  5. Step 5: Solve for x
    x = 77,404,200,723.61/319,040.52
  6. Step 6: Final answer
    x = 242,615.58

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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.