Home / 621,487.26-857,718.27-379,911.24

Finding the Fourth Proportional to 621,487.26, 857,718.27 and 379,911.24

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Solution

The fourth proportional to 621,487.26, 857,718.27 and 379,911.24 is: 524,317.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,487.26 : 857,718.27 = 379,911.24 : x
  2. Step 2: Convert to fraction form
    621,487.26/857,718.27 = 379,911.24/x
  3. Step 3: Cross multiply
    621,487.26x = 857,718.27 × 379,911.24
  4. Step 4: Simplify right side
    621,487.26x = 325,856,811,526.36
  5. Step 5: Solve for x
    x = 325,856,811,526.36/621,487.26
  6. Step 6: Final answer
    x = 524,317.77

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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.