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Finding the Fourth Proportional to 325,010.48, 487,455.96 and 147,474.80

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Solution

The fourth proportional to 325,010.48, 487,455.96 and 147,474.80 is: 221,185.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,010.48 : 487,455.96 = 147,474.80 : x
  2. Step 2: Convert to fraction form
    325,010.48/487,455.96 = 147,474.80/x
  3. Step 3: Cross multiply
    325,010.48x = 487,455.96 × 147,474.80
  4. Step 4: Simplify right side
    325,010.48x = 71,887,470,209.81
  5. Step 5: Solve for x
    x = 71,887,470,209.81/325,010.48
  6. Step 6: Final answer
    x = 221,185.08

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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.