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Finding the Fourth Proportional to 322,085.20, 451,852.40 and 322,085.20

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Solution

The fourth proportional to 322,085.20, 451,852.40 and 322,085.20 is: 451,852.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,085.20 : 451,852.40 = 322,085.20 : x
  2. Step 2: Convert to fraction form
    322,085.20/451,852.40 = 322,085.20/x
  3. Step 3: Cross multiply
    322,085.20x = 451,852.40 × 322,085.20
  4. Step 4: Simplify right side
    322,085.20x = 145,534,970,624.48
  5. Step 5: Solve for x
    x = 145,534,970,624.48/322,085.20
  6. Step 6: Final answer
    x = 451,852.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.