Home / 1,640,156.40-2,260,056.60-1,209,754.80

Finding the Fourth Proportional to 1,640,156.40, 2,260,056.60 and 1,209,754.80

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Solution

The fourth proportional to 1,640,156.40, 2,260,056.60 and 1,209,754.80 is: 1,666,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,156.40 : 2,260,056.60 = 1,209,754.80 : x
  2. Step 2: Convert to fraction form
    1,640,156.40/2,260,056.60 = 1,209,754.80/x
  3. Step 3: Cross multiply
    1,640,156.40x = 2,260,056.60 × 1,209,754.80
  4. Step 4: Simplify right side
    1,640,156.40x = 2,734,114,320,121.68
  5. Step 5: Solve for x
    x = 2,734,114,320,121.68/1,640,156.40
  6. Step 6: Final answer
    x = 1,666,983.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.