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Finding the Fourth Proportional to 506,606.11, 699,111.10 and 277,161.05

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Solution

The fourth proportional to 506,606.11, 699,111.10 and 277,161.05 is: 382,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,606.11 : 699,111.10 = 277,161.05 : x
  2. Step 2: Convert to fraction form
    506,606.11/699,111.10 = 277,161.05/x
  3. Step 3: Cross multiply
    506,606.11x = 699,111.10 × 277,161.05
  4. Step 4: Simplify right side
    506,606.11x = 193,766,366,542.66
  5. Step 5: Solve for x
    x = 193,766,366,542.66/506,606.11
  6. Step 6: Final answer
    x = 382,479.33

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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.