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Finding the Fourth Proportional to 504,220.80, 756,331.20 and 223,766.40

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Solution

The fourth proportional to 504,220.80, 756,331.20 and 223,766.40 is: 335,649.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,220.80 : 756,331.20 = 223,766.40 : x
  2. Step 2: Convert to fraction form
    504,220.80/756,331.20 = 223,766.40/x
  3. Step 3: Cross multiply
    504,220.80x = 756,331.20 × 223,766.40
  4. Step 4: Simplify right side
    504,220.80x = 169,241,509,831.68
  5. Step 5: Solve for x
    x = 169,241,509,831.68/504,220.80
  6. Step 6: Final answer
    x = 335,649.60

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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.