Home / 939,789.12-1,296,910.16-510,069.36

Finding the Fourth Proportional to 939,789.12, 1,296,910.16 and 510,069.36

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Solution

The fourth proportional to 939,789.12, 1,296,910.16 and 510,069.36 is: 703,896.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,789.12 : 1,296,910.16 = 510,069.36 : x
  2. Step 2: Convert to fraction form
    939,789.12/1,296,910.16 = 510,069.36/x
  3. Step 3: Cross multiply
    939,789.12x = 1,296,910.16 × 510,069.36
  4. Step 4: Simplify right side
    939,789.12x = 661,514,132,738.35
  5. Step 5: Solve for x
    x = 661,514,132,738.35/939,789.12
  6. Step 6: Final answer
    x = 703,896.35

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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.