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Finding the Fourth Proportional to 373,651.68, 515,651.76 and 203,895.12

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Solution

The fourth proportional to 373,651.68, 515,651.76 and 203,895.12 is: 281,382.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,651.68 : 515,651.76 = 203,895.12 : x
  2. Step 2: Convert to fraction form
    373,651.68/515,651.76 = 203,895.12/x
  3. Step 3: Cross multiply
    373,651.68x = 515,651.76 × 203,895.12
  4. Step 4: Simplify right side
    373,651.68x = 105,138,877,483.41
  5. Step 5: Solve for x
    x = 105,138,877,483.41/373,651.68
  6. Step 6: Final answer
    x = 281,382.05

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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.