Home / 1,093,411.20-1,640,116.80-621,019.20

Finding the Fourth Proportional to 1,093,411.20, 1,640,116.80 and 621,019.20

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Solution

The fourth proportional to 1,093,411.20, 1,640,116.80 and 621,019.20 is: 931,528.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,093,411.20 : 1,640,116.80 = 621,019.20 : x
  2. Step 2: Convert to fraction form
    1,093,411.20/1,640,116.80 = 621,019.20/x
  3. Step 3: Cross multiply
    1,093,411.20x = 1,640,116.80 × 621,019.20
  4. Step 4: Simplify right side
    1,093,411.20x = 1,018,544,023,042.56
  5. Step 5: Solve for x
    x = 1,018,544,023,042.56/1,093,411.20
  6. Step 6: Final answer
    x = 931,528.80

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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.