Home / 1,276,586.20-1,914,749.70-435,125.80

Finding the Fourth Proportional to 1,276,586.20, 1,914,749.70 and 435,125.80

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Solution

The fourth proportional to 1,276,586.20, 1,914,749.70 and 435,125.80 is: 652,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,586.20 : 1,914,749.70 = 435,125.80 : x
  2. Step 2: Convert to fraction form
    1,276,586.20/1,914,749.70 = 435,125.80/x
  3. Step 3: Cross multiply
    1,276,586.20x = 1,914,749.70 × 435,125.80
  4. Step 4: Simplify right side
    1,276,586.20x = 833,156,995,012.26
  5. Step 5: Solve for x
    x = 833,156,995,012.26/1,276,586.20
  6. Step 6: Final answer
    x = 652,644.53

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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.