Home / 319,198.07-440,485.02-174,006.72

Finding the Fourth Proportional to 319,198.07, 440,485.02 and 174,006.72

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Solution

The fourth proportional to 319,198.07, 440,485.02 and 174,006.72 is: 240,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,198.07 : 440,485.02 = 174,006.72 : x
  2. Step 2: Convert to fraction form
    319,198.07/440,485.02 = 174,006.72/x
  3. Step 3: Cross multiply
    319,198.07x = 440,485.02 × 174,006.72
  4. Step 4: Simplify right side
    319,198.07x = 76,647,353,539.33
  5. Step 5: Solve for x
    x = 76,647,353,539.33/319,198.07
  6. Step 6: Final answer
    x = 240,124.74

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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.