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Finding the Fourth Proportional to 480,881.56, 663,636.10 and 266,017.92

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Solution

The fourth proportional to 480,881.56, 663,636.10 and 266,017.92 is: 367,115.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,881.56 : 663,636.10 = 266,017.92 : x
  2. Step 2: Convert to fraction form
    480,881.56/663,636.10 = 266,017.92/x
  3. Step 3: Cross multiply
    480,881.56x = 663,636.10 × 266,017.92
  4. Step 4: Simplify right side
    480,881.56x = 176,539,094,958.91
  5. Step 5: Solve for x
    x = 176,539,094,958.91/480,881.56
  6. Step 6: Final answer
    x = 367,115.54

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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.