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Finding the Fourth Proportional to 616,810.76, 850,938.18 and 412,927.36

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Solution

The fourth proportional to 616,810.76, 850,938.18 and 412,927.36 is: 569,665.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,810.76 : 850,938.18 = 412,927.36 : x
  2. Step 2: Convert to fraction form
    616,810.76/850,938.18 = 412,927.36/x
  3. Step 3: Cross multiply
    616,810.76x = 850,938.18 × 412,927.36
  4. Step 4: Simplify right side
    616,810.76x = 351,375,656,190.61
  5. Step 5: Solve for x
    x = 351,375,656,190.61/616,810.76
  6. Step 6: Final answer
    x = 569,665.25

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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.