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Finding the Fourth Proportional to 5,855,492.80, 8,783,239.20 and 1,866,404.80

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Solution

The fourth proportional to 5,855,492.80, 8,783,239.20 and 1,866,404.80 is: 2,799,607.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,855,492.80 : 8,783,239.20 = 1,866,404.80 : x
  2. Step 2: Convert to fraction form
    5,855,492.80/8,783,239.20 = 1,866,404.80/x
  3. Step 3: Cross multiply
    5,855,492.80x = 8,783,239.20 × 1,866,404.80
  4. Step 4: Simplify right side
    5,855,492.80x = 16,393,079,802,428.16
  5. Step 5: Solve for x
    x = 16,393,079,802,428.16/5,855,492.80
  6. Step 6: Final answer
    x = 2,799,607.20

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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.