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Finding the Fourth Proportional to 538,590.39, 743,220.93 and 296,859.66

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Solution

The fourth proportional to 538,590.39, 743,220.93 and 296,859.66 is: 409,647.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,590.39 : 743,220.93 = 296,859.66 : x
  2. Step 2: Convert to fraction form
    538,590.39/743,220.93 = 296,859.66/x
  3. Step 3: Cross multiply
    538,590.39x = 743,220.93 × 296,859.66
  4. Step 4: Simplify right side
    538,590.39x = 220,632,312,584.68
  5. Step 5: Solve for x
    x = 220,632,312,584.68/538,590.39
  6. Step 6: Final answer
    x = 409,647.70

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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.