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Finding the Fourth Proportional to 320,464.01, 480,695.41 and 120,829.18

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Solution

The fourth proportional to 320,464.01, 480,695.41 and 120,829.18 is: 181,243.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,464.01 : 480,695.41 = 120,829.18 : x
  2. Step 2: Convert to fraction form
    320,464.01/480,695.41 = 120,829.18/x
  3. Step 3: Cross multiply
    320,464.01x = 480,695.41 × 120,829.18
  4. Step 4: Simplify right side
    320,464.01x = 58,082,032,220.06
  5. Step 5: Solve for x
    x = 58,082,032,220.06/320,464.01
  6. Step 6: Final answer
    x = 181,243.54

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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.