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Finding the Fourth Proportional to 464,418.12, 640,904.22 and 260,514.30

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Solution

The fourth proportional to 464,418.12, 640,904.22 and 260,514.30 is: 359,513.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,418.12 : 640,904.22 = 260,514.30 : x
  2. Step 2: Convert to fraction form
    464,418.12/640,904.22 = 260,514.30/x
  3. Step 3: Cross multiply
    464,418.12x = 640,904.22 × 260,514.30
  4. Step 4: Simplify right side
    464,418.12x = 166,964,714,240.35
  5. Step 5: Solve for x
    x = 166,964,714,240.35/464,418.12
  6. Step 6: Final answer
    x = 359,513.78

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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.