Home / 955,960.50-1,319,239.07-520,391.19

Finding the Fourth Proportional to 955,960.50, 1,319,239.07 and 520,391.19

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Solution

The fourth proportional to 955,960.50, 1,319,239.07 and 520,391.19 is: 718,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    955,960.50 : 1,319,239.07 = 520,391.19 : x
  2. Step 2: Convert to fraction form
    955,960.50/1,319,239.07 = 520,391.19/x
  3. Step 3: Cross multiply
    955,960.50x = 1,319,239.07 × 520,391.19
  4. Step 4: Simplify right side
    955,960.50x = 686,520,389,531.79
  5. Step 5: Solve for x
    x = 686,520,389,531.79/955,960.50
  6. Step 6: Final answer
    x = 718,147.23

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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.