Home / 651,724.52-899,210.97-393,397.29

Finding the Fourth Proportional to 651,724.52, 899,210.97 and 393,397.29

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Solution

The fourth proportional to 651,724.52, 899,210.97 and 393,397.29 is: 542,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,724.52 : 899,210.97 = 393,397.29 : x
  2. Step 2: Convert to fraction form
    651,724.52/899,210.97 = 393,397.29/x
  3. Step 3: Cross multiply
    651,724.52x = 899,210.97 × 393,397.29
  4. Step 4: Simplify right side
    651,724.52x = 353,747,158,736.27
  5. Step 5: Solve for x
    x = 353,747,158,736.27/651,724.52
  6. Step 6: Final answer
    x = 542,786.33

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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.