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Finding the Fourth Proportional to 6,292,687.76, 8,678,975.70 and 4,307,000.30

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Solution

The fourth proportional to 6,292,687.76, 8,678,975.70 and 4,307,000.30 is: 5,940,283.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,292,687.76 : 8,678,975.70 = 4,307,000.30 : x
  2. Step 2: Convert to fraction form
    6,292,687.76/8,678,975.70 = 4,307,000.30/x
  3. Step 3: Cross multiply
    6,292,687.76x = 8,678,975.70 × 4,307,000.30
  4. Step 4: Simplify right side
    6,292,687.76x = 37,380,350,943,592.70
  5. Step 5: Solve for x
    x = 37,380,350,943,592.70/6,292,687.76
  6. Step 6: Final answer
    x = 5,940,283.77

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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.