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Finding the Fourth Proportional to 543,625.90, 812,814.45 and 401,908.30

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Solution

The fourth proportional to 543,625.90, 812,814.45 and 401,908.30 is: 600,922.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,625.90 : 812,814.45 = 401,908.30 : x
  2. Step 2: Convert to fraction form
    543,625.90/812,814.45 = 401,908.30/x
  3. Step 3: Cross multiply
    543,625.90x = 812,814.45 × 401,908.30
  4. Step 4: Simplify right side
    543,625.90x = 326,676,873,814.94
  5. Step 5: Solve for x
    x = 326,676,873,814.94/543,625.90
  6. Step 6: Final answer
    x = 600,922.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.