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Finding the Fourth Proportional to 666,683.31, 920,044.94 and 364,877.31

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Solution

The fourth proportional to 666,683.31, 920,044.94 and 364,877.31 is: 503,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,683.31 : 920,044.94 = 364,877.31 : x
  2. Step 2: Convert to fraction form
    666,683.31/920,044.94 = 364,877.31/x
  3. Step 3: Cross multiply
    666,683.31x = 920,044.94 × 364,877.31
  4. Step 4: Simplify right side
    666,683.31x = 335,703,520,961.93
  5. Step 5: Solve for x
    x = 335,703,520,961.93/666,683.31
  6. Step 6: Final answer
    x = 503,542.71

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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.