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Finding the Fourth Proportional to 1,877,052.86, 2,815,559.20 and 1,424,424.59

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Solution

The fourth proportional to 1,877,052.86, 2,815,559.20 and 1,424,424.59 is: 2,136,621.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,877,052.86 : 2,815,559.20 = 1,424,424.59 : x
  2. Step 2: Convert to fraction form
    1,877,052.86/2,815,559.20 = 1,424,424.59/x
  3. Step 3: Cross multiply
    1,877,052.86x = 2,815,559.20 × 1,424,424.59
  4. Step 4: Simplify right side
    1,877,052.86x = 4,010,551,741,441.87
  5. Step 5: Solve for x
    x = 4,010,551,741,441.87/1,877,052.86
  6. Step 6: Final answer
    x = 2,136,621.63

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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.