Home / 654,231.60-985,800.24-538,498.80

Finding the Fourth Proportional to 654,231.60, 985,800.24 and 538,498.80

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Solution

The fourth proportional to 654,231.60, 985,800.24 and 538,498.80 is: 811,413.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,231.60 : 985,800.24 = 538,498.80 : x
  2. Step 2: Convert to fraction form
    654,231.60/985,800.24 = 538,498.80/x
  3. Step 3: Cross multiply
    654,231.60x = 985,800.24 × 538,498.80
  4. Step 4: Simplify right side
    654,231.60x = 530,852,246,279.71
  5. Step 5: Solve for x
    x = 530,852,246,279.71/654,231.60
  6. Step 6: Final answer
    x = 811,413.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.