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Finding the Fourth Proportional to 541,996.60, 812,666.56 and 242,421.36

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Solution

The fourth proportional to 541,996.60, 812,666.56 and 242,421.36 is: 363,485.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,996.60 : 812,666.56 = 242,421.36 : x
  2. Step 2: Convert to fraction form
    541,996.60/812,666.56 = 242,421.36/x
  3. Step 3: Cross multiply
    541,996.60x = 812,666.56 × 242,421.36
  4. Step 4: Simplify right side
    541,996.60x = 197,007,732,701.72
  5. Step 5: Solve for x
    x = 197,007,732,701.72/541,996.60
  6. Step 6: Final answer
    x = 363,485.18

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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.