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Finding the Fourth Proportional to 2,877,978.14, 4,317,846.90 and 1,726,500.80

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Solution

The fourth proportional to 2,877,978.14, 4,317,846.90 and 1,726,500.80 is: 2,590,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877,978.14 : 4,317,846.90 = 1,726,500.80 : x
  2. Step 2: Convert to fraction form
    2,877,978.14/4,317,846.90 = 1,726,500.80/x
  3. Step 3: Cross multiply
    2,877,978.14x = 4,317,846.90 × 1,726,500.80
  4. Step 4: Simplify right side
    2,877,978.14x = 7,454,766,127,127.52
  5. Step 5: Solve for x
    x = 7,454,766,127,127.52/2,877,978.14
  6. Step 6: Final answer
    x = 2,590,278.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.