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Finding the Fourth Proportional to 586,681.72, 809,553.78 and 328,522.78

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Solution

The fourth proportional to 586,681.72, 809,553.78 and 328,522.78 is: 453,323.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,681.72 : 809,553.78 = 328,522.78 : x
  2. Step 2: Convert to fraction form
    586,681.72/809,553.78 = 328,522.78/x
  3. Step 3: Cross multiply
    586,681.72x = 809,553.78 × 328,522.78
  4. Step 4: Simplify right side
    586,681.72x = 265,956,858,365.11
  5. Step 5: Solve for x
    x = 265,956,858,365.11/586,681.72
  6. Step 6: Final answer
    x = 453,323.92

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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.