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Finding the Fourth Proportional to 479,789.64, 662,109.74 and 264,930.12

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Solution

The fourth proportional to 479,789.64, 662,109.74 and 264,930.12 is: 365,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,789.64 : 662,109.74 = 264,930.12 : x
  2. Step 2: Convert to fraction form
    479,789.64/662,109.74 = 264,930.12/x
  3. Step 3: Cross multiply
    479,789.64x = 662,109.74 × 264,930.12
  4. Step 4: Simplify right side
    479,789.64x = 175,412,812,871.37
  5. Step 5: Solve for x
    x = 175,412,812,871.37/479,789.64
  6. Step 6: Final answer
    x = 365,603.59

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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.