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Finding the Fourth Proportional to 1,738,888.80, 2,607,458.40 and 1,029,134.40

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Solution

The fourth proportional to 1,738,888.80, 2,607,458.40 and 1,029,134.40 is: 1,543,183.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,738,888.80 : 2,607,458.40 = 1,029,134.40 : x
  2. Step 2: Convert to fraction form
    1,738,888.80/2,607,458.40 = 1,029,134.40/x
  3. Step 3: Cross multiply
    1,738,888.80x = 2,607,458.40 × 1,029,134.40
  4. Step 4: Simplify right side
    1,738,888.80x = 2,683,425,136,008.96
  5. Step 5: Solve for x
    x = 2,683,425,136,008.96/1,738,888.80
  6. Step 6: Final answer
    x = 1,543,183.86

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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.