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Finding the Fourth Proportional to 319,065.09, 440,329.41 and 175,825.10

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Solution

The fourth proportional to 319,065.09, 440,329.41 and 175,825.10 is: 242,649.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,065.09 : 440,329.41 = 175,825.10 : x
  2. Step 2: Convert to fraction form
    319,065.09/440,329.41 = 175,825.10/x
  3. Step 3: Cross multiply
    319,065.09x = 440,329.41 × 175,825.10
  4. Step 4: Simplify right side
    319,065.09x = 77,420,960,344.54
  5. Step 5: Solve for x
    x = 77,420,960,344.54/319,065.09
  6. Step 6: Final answer
    x = 242,649.42

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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.