Home / 939,879.84-1,296,999.45-510,150.90

Finding the Fourth Proportional to 939,879.84, 1,296,999.45 and 510,150.90

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Solution

The fourth proportional to 939,879.84, 1,296,999.45 and 510,150.90 is: 703,989.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,879.84 : 1,296,999.45 = 510,150.90 : x
  2. Step 2: Convert to fraction form
    939,879.84/1,296,999.45 = 510,150.90/x
  3. Step 3: Cross multiply
    939,879.84x = 1,296,999.45 × 510,150.90
  4. Step 4: Simplify right side
    939,879.84x = 661,665,436,717.01
  5. Step 5: Solve for x
    x = 661,665,436,717.01/939,879.84
  6. Step 6: Final answer
    x = 703,989.39

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1.5x scale

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.