Home / 956,640-1,320,163.20-554,465.28

Finding the Fourth Proportional to 956,640, 1,320,163.20 and 554,465.28

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Solution

The fourth proportional to 956,640, 1,320,163.20 and 554,465.28 is: 765,162.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    956,640 : 1,320,163.20 = 554,465.28 : x
  2. Step 2: Convert to fraction form
    956,640/1,320,163.20 = 554,465.28/x
  3. Step 3: Cross multiply
    956,640x = 1,320,163.20 × 554,465.28
  4. Step 4: Simplify right side
    956,640x = 731,984,658,333.70
  5. Step 5: Solve for x
    x = 731,984,658,333.70/956,640
  6. Step 6: Final answer
    x = 765,162.09

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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.