Home / 1,328,325.26-1,991,225.43-519,228.39

Finding the Fourth Proportional to 1,328,325.26, 1,991,225.43 and 519,228.39

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Solution

The fourth proportional to 1,328,325.26, 1,991,225.43 and 519,228.39 is: 778,349.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,325.26 : 1,991,225.43 = 519,228.39 : x
  2. Step 2: Convert to fraction form
    1,328,325.26/1,991,225.43 = 519,228.39/x
  3. Step 3: Cross multiply
    1,328,325.26x = 1,991,225.43 × 519,228.39
  4. Step 4: Simplify right side
    1,328,325.26x = 1,033,900,765,487.90
  5. Step 5: Solve for x
    x = 1,033,900,765,487.90/1,328,325.26
  6. Step 6: Final answer
    x = 778,349.10

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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.