Home / 1,276,920.20-1,915,226.70-528,888.20

Finding the Fourth Proportional to 1,276,920.20, 1,915,226.70 and 528,888.20

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Solution

The fourth proportional to 1,276,920.20, 1,915,226.70 and 528,888.20 is: 793,268.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,920.20 : 1,915,226.70 = 528,888.20 : x
  2. Step 2: Convert to fraction form
    1,276,920.20/1,915,226.70 = 528,888.20/x
  3. Step 3: Cross multiply
    1,276,920.20x = 1,915,226.70 × 528,888.20
  4. Step 4: Simplify right side
    1,276,920.20x = 1,012,940,801,954.94
  5. Step 5: Solve for x
    x = 1,012,940,801,954.94/1,276,920.20
  6. Step 6: Final answer
    x = 793,268.68

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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.