Home / 1,276,553.20-1,912,302.60-827,586.40

Finding the Fourth Proportional to 1,276,553.20, 1,912,302.60 and 827,586.40

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Solution

The fourth proportional to 1,276,553.20, 1,912,302.60 and 827,586.40 is: 1,239,741.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,553.20 : 1,912,302.60 = 827,586.40 : x
  2. Step 2: Convert to fraction form
    1,276,553.20/1,912,302.60 = 827,586.40/x
  3. Step 3: Cross multiply
    1,276,553.20x = 1,912,302.60 × 827,586.40
  4. Step 4: Simplify right side
    1,276,553.20x = 1,582,595,624,444.64
  5. Step 5: Solve for x
    x = 1,582,595,624,444.64/1,276,553.20
  6. Step 6: Final answer
    x = 1,239,741.22

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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.