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Finding the Fourth Proportional to 483,151.72, 666,642 and 292,161.10

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Solution

The fourth proportional to 483,151.72, 666,642 and 292,161.10 is: 403,117.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,151.72 : 666,642 = 292,161.10 : x
  2. Step 2: Convert to fraction form
    483,151.72/666,642 = 292,161.10/x
  3. Step 3: Cross multiply
    483,151.72x = 666,642 × 292,161.10
  4. Step 4: Simplify right side
    483,151.72x = 194,766,860,026.20
  5. Step 5: Solve for x
    x = 194,766,860,026.20/483,151.72
  6. Step 6: Final answer
    x = 403,117.39

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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.