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Finding the Fourth Proportional to 319,110.42, 440,363.73 and 175,870.42

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Solution

The fourth proportional to 319,110.42, 440,363.73 and 175,870.42 is: 242,696.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,110.42 : 440,363.73 = 175,870.42 : x
  2. Step 2: Convert to fraction form
    319,110.42/440,363.73 = 175,870.42/x
  3. Step 3: Cross multiply
    319,110.42x = 440,363.73 × 175,870.42
  4. Step 4: Simplify right side
    319,110.42x = 77,446,954,147.87
  5. Step 5: Solve for x
    x = 77,446,954,147.87/319,110.42
  6. Step 6: Final answer
    x = 242,696.41

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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.