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Finding the Fourth Proportional to 307,562.48, 424,436.28 and 173,426.48

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Solution

The fourth proportional to 307,562.48, 424,436.28 and 173,426.48 is: 239,328.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,562.48 : 424,436.28 = 173,426.48 : x
  2. Step 2: Convert to fraction form
    307,562.48/424,436.28 = 173,426.48/x
  3. Step 3: Cross multiply
    307,562.48x = 424,436.28 × 173,426.48
  4. Step 4: Simplify right side
    307,562.48x = 73,608,490,024.69
  5. Step 5: Solve for x
    x = 73,608,490,024.69/307,562.48
  6. Step 6: Final answer
    x = 239,328.57

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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.