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Finding the Fourth Proportional to 467,642.93, 644,465.43 and 338,362.53

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Solution

The fourth proportional to 467,642.93, 644,465.43 and 338,362.53 is: 466,302.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,642.93 : 644,465.43 = 338,362.53 : x
  2. Step 2: Convert to fraction form
    467,642.93/644,465.43 = 338,362.53/x
  3. Step 3: Cross multiply
    467,642.93x = 644,465.43 × 338,362.53
  4. Step 4: Simplify right side
    467,642.93x = 218,062,953,392.34
  5. Step 5: Solve for x
    x = 218,062,953,392.34/467,642.93
  6. Step 6: Final answer
    x = 466,302.26

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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.