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Finding the Fourth Proportional to 307,275.73, 424,042.29 and 171,318.24

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Solution

The fourth proportional to 307,275.73, 424,042.29 and 171,318.24 is: 236,420.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,275.73 : 424,042.29 = 171,318.24 : x
  2. Step 2: Convert to fraction form
    307,275.73/424,042.29 = 171,318.24/x
  3. Step 3: Cross multiply
    307,275.73x = 424,042.29 × 171,318.24
  4. Step 4: Simplify right side
    307,275.73x = 72,646,178,808.37
  5. Step 5: Solve for x
    x = 72,646,178,808.37/307,275.73
  6. Step 6: Final answer
    x = 236,420.17

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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.