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Finding the Fourth Proportional to 669,482.64, 1,004,223.12 and 170,846.64

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Solution

The fourth proportional to 669,482.64, 1,004,223.12 and 170,846.64 is: 256,269.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,482.64 : 1,004,223.12 = 170,846.64 : x
  2. Step 2: Convert to fraction form
    669,482.64/1,004,223.12 = 170,846.64/x
  3. Step 3: Cross multiply
    669,482.64x = 1,004,223.12 × 170,846.64
  4. Step 4: Simplify right side
    669,482.64x = 171,568,145,862.32
  5. Step 5: Solve for x
    x = 171,568,145,862.32/669,482.64
  6. Step 6: Final answer
    x = 256,269.75

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Double scale
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Similar ratio
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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.