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Finding the Fourth Proportional to 464,000.84, 640,320.90 and 262,796.84

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Solution

The fourth proportional to 464,000.84, 640,320.90 and 262,796.84 is: 362,659.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,000.84 : 640,320.90 = 262,796.84 : x
  2. Step 2: Convert to fraction form
    464,000.84/640,320.90 = 262,796.84/x
  3. Step 3: Cross multiply
    464,000.84x = 640,320.90 × 262,796.84
  4. Step 4: Simplify right side
    464,000.84x = 168,274,309,105.96
  5. Step 5: Solve for x
    x = 168,274,309,105.96/464,000.84
  6. Step 6: Final answer
    x = 362,659.49

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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.