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Finding the Fourth Proportional to 303,340.71, 418,603.23 and 167,387.49

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Solution

The fourth proportional to 303,340.71, 418,603.23 and 167,387.49 is: 230,990.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,340.71 : 418,603.23 = 167,387.49 : x
  2. Step 2: Convert to fraction form
    303,340.71/418,603.23 = 167,387.49/x
  3. Step 3: Cross multiply
    303,340.71x = 418,603.23 × 167,387.49
  4. Step 4: Simplify right side
    303,340.71x = 70,068,943,975.59
  5. Step 5: Solve for x
    x = 70,068,943,975.59/303,340.71
  6. Step 6: Final answer
    x = 230,990.90

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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.