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Finding the Fourth Proportional to 264,005.80, 396,008.70 and 74,465.80

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Solution

The fourth proportional to 264,005.80, 396,008.70 and 74,465.80 is: 111,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,005.80 : 396,008.70 = 74,465.80 : x
  2. Step 2: Convert to fraction form
    264,005.80/396,008.70 = 74,465.80/x
  3. Step 3: Cross multiply
    264,005.80x = 396,008.70 × 74,465.80
  4. Step 4: Simplify right side
    264,005.80x = 29,489,104,652.46
  5. Step 5: Solve for x
    x = 29,489,104,652.46/264,005.80
  6. Step 6: Final answer
    x = 111,698.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.