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Finding the Fourth Proportional to 573,639.69, 791,789.64 and 382,652.61

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Solution

The fourth proportional to 573,639.69, 791,789.64 and 382,652.61 is: 528,171.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,639.69 : 791,789.64 = 382,652.61 : x
  2. Step 2: Convert to fraction form
    573,639.69/791,789.64 = 382,652.61/x
  3. Step 3: Cross multiply
    573,639.69x = 791,789.64 × 382,652.61
  4. Step 4: Simplify right side
    573,639.69x = 302,980,372,316.96
  5. Step 5: Solve for x
    x = 302,980,372,316.96/573,639.69
  6. Step 6: Final answer
    x = 528,171.91

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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.