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Finding the Fourth Proportional to 565,196.78, 779,437.14 and 371,262.32

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Solution

The fourth proportional to 565,196.78, 779,437.14 and 371,262.32 is: 511,990.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,196.78 : 779,437.14 = 371,262.32 : x
  2. Step 2: Convert to fraction form
    565,196.78/779,437.14 = 371,262.32/x
  3. Step 3: Cross multiply
    565,196.78x = 779,437.14 × 371,262.32
  4. Step 4: Simplify right side
    565,196.78x = 289,375,640,890.57
  5. Step 5: Solve for x
    x = 289,375,640,890.57/565,196.78
  6. Step 6: Final answer
    x = 511,990.96

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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.