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Finding the Fourth Proportional to 672,616.88, 927,686.42 and 430,921.94

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Solution

The fourth proportional to 672,616.88, 927,686.42 and 430,921.94 is: 594,336.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,616.88 : 927,686.42 = 430,921.94 : x
  2. Step 2: Convert to fraction form
    672,616.88/927,686.42 = 430,921.94/x
  3. Step 3: Cross multiply
    672,616.88x = 927,686.42 × 430,921.94
  4. Step 4: Simplify right side
    672,616.88x = 399,760,431,982.66
  5. Step 5: Solve for x
    x = 399,760,431,982.66/672,616.88
  6. Step 6: Final answer
    x = 594,336.01

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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.