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Finding the Fourth Proportional to 480,996.96, 663,715.80 and 266,107.20

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Solution

The fourth proportional to 480,996.96, 663,715.80 and 266,107.20 is: 367,194.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,996.96 : 663,715.80 = 266,107.20 : x
  2. Step 2: Convert to fraction form
    480,996.96/663,715.80 = 266,107.20/x
  3. Step 3: Cross multiply
    480,996.96x = 663,715.80 × 266,107.20
  4. Step 4: Simplify right side
    480,996.96x = 176,619,553,133.76
  5. Step 5: Solve for x
    x = 176,619,553,133.76/480,996.96
  6. Step 6: Final answer
    x = 367,194.74

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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.