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Finding the Fourth Proportional to 303,396.13, 418,686.83 and 169,260.13

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Solution

The fourth proportional to 303,396.13, 418,686.83 and 169,260.13 is: 233,579.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,396.13 : 418,686.83 = 169,260.13 : x
  2. Step 2: Convert to fraction form
    303,396.13/418,686.83 = 169,260.13/x
  3. Step 3: Cross multiply
    303,396.13x = 418,686.83 × 169,260.13
  4. Step 4: Simplify right side
    303,396.13x = 70,866,987,275.09
  5. Step 5: Solve for x
    x = 70,866,987,275.09/303,396.13
  6. Step 6: Final answer
    x = 233,579.07

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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.