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Finding the Fourth Proportional to 644,817.20, 967,225.80 and 224,135.60

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Solution

The fourth proportional to 644,817.20, 967,225.80 and 224,135.60 is: 336,203.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,817.20 : 967,225.80 = 224,135.60 : x
  2. Step 2: Convert to fraction form
    644,817.20/967,225.80 = 224,135.60/x
  3. Step 3: Cross multiply
    644,817.20x = 967,225.80 × 224,135.60
  4. Step 4: Simplify right side
    644,817.20x = 216,789,735,018.48
  5. Step 5: Solve for x
    x = 216,789,735,018.48/644,817.20
  6. Step 6: Final answer
    x = 336,203.40

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Half scale
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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.