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Finding the Fourth Proportional to 616,838.08, 851,219.20 and 344,906.40

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Solution

The fourth proportional to 616,838.08, 851,219.20 and 344,906.40 is: 475,961.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,838.08 : 851,219.20 = 344,906.40 : x
  2. Step 2: Convert to fraction form
    616,838.08/851,219.20 = 344,906.40/x
  3. Step 3: Cross multiply
    616,838.08x = 851,219.20 × 344,906.40
  4. Step 4: Simplify right side
    616,838.08x = 293,590,949,882.88
  5. Step 5: Solve for x
    x = 293,590,949,882.88/616,838.08
  6. Step 6: Final answer
    x = 475,961.13

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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.