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Finding the Fourth Proportional to 633,514.12, 874,249.65 and 347,044.39

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Solution

The fourth proportional to 633,514.12, 874,249.65 and 347,044.39 is: 478,921.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,514.12 : 874,249.65 = 347,044.39 : x
  2. Step 2: Convert to fraction form
    633,514.12/874,249.65 = 347,044.39/x
  3. Step 3: Cross multiply
    633,514.12x = 874,249.65 × 347,044.39
  4. Step 4: Simplify right side
    633,514.12x = 303,403,434,306.34
  5. Step 5: Solve for x
    x = 303,403,434,306.34/633,514.12
  6. Step 6: Final answer
    x = 478,921.35

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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.