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Finding the Fourth Proportional to 443,994.95, 612,700.58 and 242,786.63

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Solution

The fourth proportional to 443,994.95, 612,700.58 and 242,786.63 is: 335,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,994.95 : 612,700.58 = 242,786.63 : x
  2. Step 2: Convert to fraction form
    443,994.95/612,700.58 = 242,786.63/x
  3. Step 3: Cross multiply
    443,994.95x = 612,700.58 × 242,786.63
  4. Step 4: Simplify right side
    443,994.95x = 148,755,504,739.81
  5. Step 5: Solve for x
    x = 148,755,504,739.81/443,994.95
  6. Step 6: Final answer
    x = 335,038.74

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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.