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Finding the Fourth Proportional to 583,578.81, 805,344.89 and 328,930.00

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Solution

The fourth proportional to 583,578.81, 805,344.89 and 328,930.00 is: 453,926.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,578.81 : 805,344.89 = 328,930.00 : x
  2. Step 2: Convert to fraction form
    583,578.81/805,344.89 = 328,930.00/x
  3. Step 3: Cross multiply
    583,578.81x = 805,344.89 × 328,930.00
  4. Step 4: Simplify right side
    583,578.81x = 264,902,091,009.69
  5. Step 5: Solve for x
    x = 264,902,091,009.69/583,578.81
  6. Step 6: Final answer
    x = 453,926.85

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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.