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Finding the Fourth Proportional to 303,347.40, 418,616.64 and 167,382.60

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Solution

The fourth proportional to 303,347.40, 418,616.64 and 167,382.60 is: 230,986.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,347.40 : 418,616.64 = 167,382.60 : x
  2. Step 2: Convert to fraction form
    303,347.40/418,616.64 = 167,382.60/x
  3. Step 3: Cross multiply
    303,347.40x = 418,616.64 × 167,382.60
  4. Step 4: Simplify right side
    303,347.40x = 70,069,141,606.46
  5. Step 5: Solve for x
    x = 70,069,141,606.46/303,347.40
  6. Step 6: Final answer
    x = 230,986.46

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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.