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Finding the Fourth Proportional to 365,268.64, 547,897 and 140,678.32

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Solution

The fourth proportional to 365,268.64, 547,897 and 140,678.32 is: 211,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,268.64 : 547,897 = 140,678.32 : x
  2. Step 2: Convert to fraction form
    365,268.64/547,897 = 140,678.32/x
  3. Step 3: Cross multiply
    365,268.64x = 547,897 × 140,678.32
  4. Step 4: Simplify right side
    365,268.64x = 77,077,229,493.04
  5. Step 5: Solve for x
    x = 77,077,229,493.04/365,268.64
  6. Step 6: Final answer
    x = 211,015.18

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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.