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Finding the Fourth Proportional to 590,888.01, 815,414.38 and 361,428.45

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Solution

The fourth proportional to 590,888.01, 815,414.38 and 361,428.45 is: 498,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,888.01 : 815,414.38 = 361,428.45 : x
  2. Step 2: Convert to fraction form
    590,888.01/815,414.38 = 361,428.45/x
  3. Step 3: Cross multiply
    590,888.01x = 815,414.38 × 361,428.45
  4. Step 4: Simplify right side
    590,888.01x = 294,713,955,471.11
  5. Step 5: Solve for x
    x = 294,713,955,471.11/590,888.01
  6. Step 6: Final answer
    x = 498,764.49

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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.