Home / 1,186,997.76-1,638,126.12-670,738.50

Finding the Fourth Proportional to 1,186,997.76, 1,638,126.12 and 670,738.50

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Solution

The fourth proportional to 1,186,997.76, 1,638,126.12 and 670,738.50 is: 925,658.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,997.76 : 1,638,126.12 = 670,738.50 : x
  2. Step 2: Convert to fraction form
    1,186,997.76/1,638,126.12 = 670,738.50/x
  3. Step 3: Cross multiply
    1,186,997.76x = 1,638,126.12 × 670,738.50
  4. Step 4: Simplify right side
    1,186,997.76x = 1,098,754,256,539.62
  5. Step 5: Solve for x
    x = 1,098,754,256,539.62/1,186,997.76
  6. Step 6: Final answer
    x = 925,658.24

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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.