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Finding the Fourth Proportional to 484,209.38, 668,214.05 and 266,420.89

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Solution

The fourth proportional to 484,209.38, 668,214.05 and 266,420.89 is: 367,663.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,209.38 : 668,214.05 = 266,420.89 : x
  2. Step 2: Convert to fraction form
    484,209.38/668,214.05 = 266,420.89/x
  3. Step 3: Cross multiply
    484,209.38x = 668,214.05 × 266,420.89
  4. Step 4: Simplify right side
    484,209.38x = 178,026,181,414.67
  5. Step 5: Solve for x
    x = 178,026,181,414.67/484,209.38
  6. Step 6: Final answer
    x = 367,663.63

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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.