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Finding the Fourth Proportional to 626,512.39, 864,587.94 and 340,032.48

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Solution

The fourth proportional to 626,512.39, 864,587.94 and 340,032.48 is: 469,245.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,512.39 : 864,587.94 = 340,032.48 : x
  2. Step 2: Convert to fraction form
    626,512.39/864,587.94 = 340,032.48/x
  3. Step 3: Cross multiply
    626,512.39x = 864,587.94 × 340,032.48
  4. Step 4: Simplify right side
    626,512.39x = 293,987,981,416.29
  5. Step 5: Solve for x
    x = 293,987,981,416.29/626,512.39
  6. Step 6: Final answer
    x = 469,245.28

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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.