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Finding the Fourth Proportional to 467,172.96, 643,941.48 and 365,020.24

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Solution

The fourth proportional to 467,172.96, 643,941.48 and 365,020.24 is: 503,136.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,172.96 : 643,941.48 = 365,020.24 : x
  2. Step 2: Convert to fraction form
    467,172.96/643,941.48 = 365,020.24/x
  3. Step 3: Cross multiply
    467,172.96x = 643,941.48 × 365,020.24
  4. Step 4: Simplify right side
    467,172.96x = 235,051,673,575.56
  5. Step 5: Solve for x
    x = 235,051,673,575.56/467,172.96
  6. Step 6: Final answer
    x = 503,136.30

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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.