Home / 1,259,200.20-1,737,697.56-686,240.82

Finding the Fourth Proportional to 1,259,200.20, 1,737,697.56 and 686,240.82

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Solution

The fourth proportional to 1,259,200.20, 1,737,697.56 and 686,240.82 is: 947,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,200.20 : 1,737,697.56 = 686,240.82 : x
  2. Step 2: Convert to fraction form
    1,259,200.20/1,737,697.56 = 686,240.82/x
  3. Step 3: Cross multiply
    1,259,200.20x = 1,737,697.56 × 686,240.82
  4. Step 4: Simplify right side
    1,259,200.20x = 1,192,478,998,486.40
  5. Step 5: Solve for x
    x = 1,192,478,998,486.40/1,259,200.20
  6. Step 6: Final answer
    x = 947,013.03

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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.