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Finding the Fourth Proportional to 626,595.66, 865,151.37 and 385,201.86

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Solution

The fourth proportional to 626,595.66, 865,151.37 and 385,201.86 is: 531,854.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,595.66 : 865,151.37 = 385,201.86 : x
  2. Step 2: Convert to fraction form
    626,595.66/865,151.37 = 385,201.86/x
  3. Step 3: Cross multiply
    626,595.66x = 865,151.37 × 385,201.86
  4. Step 4: Simplify right side
    626,595.66x = 333,257,916,905.55
  5. Step 5: Solve for x
    x = 333,257,916,905.55/626,595.66
  6. Step 6: Final answer
    x = 531,854.81

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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.