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Finding the Fourth Proportional to 319,940.40, 441,514.08 and 174,745.47

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Solution

The fourth proportional to 319,940.40, 441,514.08 and 174,745.47 is: 241,146.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,940.40 : 441,514.08 = 174,745.47 : x
  2. Step 2: Convert to fraction form
    319,940.40/441,514.08 = 174,745.47/x
  3. Step 3: Cross multiply
    319,940.40x = 441,514.08 × 174,745.47
  4. Step 4: Simplify right side
    319,940.40x = 77,152,585,421.22
  5. Step 5: Solve for x
    x = 77,152,585,421.22/319,940.40
  6. Step 6: Final answer
    x = 241,146.74

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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.