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Finding the Fourth Proportional to 671,642.49, 925,290.27 and 467,342.07

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Solution

The fourth proportional to 671,642.49, 925,290.27 and 467,342.07 is: 643,835.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,642.49 : 925,290.27 = 467,342.07 : x
  2. Step 2: Convert to fraction form
    671,642.49/925,290.27 = 467,342.07/x
  3. Step 3: Cross multiply
    671,642.49x = 925,290.27 × 467,342.07
  4. Step 4: Simplify right side
    671,642.49x = 432,427,066,662.82
  5. Step 5: Solve for x
    x = 432,427,066,662.82/671,642.49
  6. Step 6: Final answer
    x = 643,835.18

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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.