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Finding the Fourth Proportional to 319,706.40, 441,205.52 and 174,520.80

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Solution

The fourth proportional to 319,706.40, 441,205.52 and 174,520.80 is: 240,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,706.40 : 441,205.52 = 174,520.80 : x
  2. Step 2: Convert to fraction form
    319,706.40/441,205.52 = 174,520.80/x
  3. Step 3: Cross multiply
    319,706.40x = 441,205.52 × 174,520.80
  4. Step 4: Simplify right side
    319,706.40x = 76,999,540,314.82
  5. Step 5: Solve for x
    x = 76,999,540,314.82/319,706.40
  6. Step 6: Final answer
    x = 240,844.54

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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.