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Finding the Fourth Proportional to 307,465.98, 424,303.71 and 171,496.43

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Solution

The fourth proportional to 307,465.98, 424,303.71 and 171,496.43 is: 236,665.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,465.98 : 424,303.71 = 171,496.43 : x
  2. Step 2: Convert to fraction form
    307,465.98/424,303.71 = 171,496.43/x
  3. Step 3: Cross multiply
    307,465.98x = 424,303.71 × 171,496.43
  4. Step 4: Simplify right side
    307,465.98x = 72,766,569,379.24
  5. Step 5: Solve for x
    x = 72,766,569,379.24/307,465.98
  6. Step 6: Final answer
    x = 236,665.43

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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.