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Finding the Fourth Proportional to 443,400.57, 611,895.21 and 242,196.57

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Solution

The fourth proportional to 443,400.57, 611,895.21 and 242,196.57 is: 334,232.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,400.57 : 611,895.21 = 242,196.57 : x
  2. Step 2: Convert to fraction form
    443,400.57/611,895.21 = 242,196.57/x
  3. Step 3: Cross multiply
    443,400.57x = 611,895.21 × 242,196.57
  4. Step 4: Simplify right side
    443,400.57x = 148,198,921,061.43
  5. Step 5: Solve for x
    x = 148,198,921,061.43/443,400.57
  6. Step 6: Final answer
    x = 334,232.59

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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.