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Finding the Fourth Proportional to 623,906.40, 935,859.60 and 203,224.80

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Solution

The fourth proportional to 623,906.40, 935,859.60 and 203,224.80 is: 304,837.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,906.40 : 935,859.60 = 203,224.80 : x
  2. Step 2: Convert to fraction form
    623,906.40/935,859.60 = 203,224.80/x
  3. Step 3: Cross multiply
    623,906.40x = 935,859.60 × 203,224.80
  4. Step 4: Simplify right side
    623,906.40x = 190,189,880,038.08
  5. Step 5: Solve for x
    x = 190,189,880,038.08/623,906.40
  6. Step 6: Final answer
    x = 304,837.20

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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.