Home / 955,679.92-1,318,814.07-520,078.75

Finding the Fourth Proportional to 955,679.92, 1,318,814.07 and 520,078.75

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Solution

The fourth proportional to 955,679.92, 1,318,814.07 and 520,078.75 is: 717,695.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,679.92 : 1,318,814.07 = 520,078.75 : x
  2. Step 2: Convert to fraction form
    955,679.92/1,318,814.07 = 520,078.75/x
  3. Step 3: Cross multiply
    955,679.92x = 1,318,814.07 × 520,078.75
  4. Step 4: Simplify right side
    955,679.92x = 685,887,173,008.01
  5. Step 5: Solve for x
    x = 685,887,173,008.01/955,679.92
  6. Step 6: Final answer
    x = 717,695.49

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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.