Home / 515,584.07-772,461.07-215,404.01

Finding the Fourth Proportional to 515,584.07, 772,461.07 and 215,404.01

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Solution

The fourth proportional to 515,584.07, 772,461.07 and 215,404.01 is: 322,723.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,584.07 : 772,461.07 = 215,404.01 : x
  2. Step 2: Convert to fraction form
    515,584.07/772,461.07 = 215,404.01/x
  3. Step 3: Cross multiply
    515,584.07x = 772,461.07 × 215,404.01
  4. Step 4: Simplify right side
    515,584.07x = 166,391,207,107.57
  5. Step 5: Solve for x
    x = 166,391,207,107.57/515,584.07
  6. Step 6: Final answer
    x = 322,723.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.