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Finding the Fourth Proportional to 623,921.72, 935,948.19 and 203,230.40

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Solution

The fourth proportional to 623,921.72, 935,948.19 and 203,230.40 is: 304,866.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,921.72 : 935,948.19 = 203,230.40 : x
  2. Step 2: Convert to fraction form
    623,921.72/935,948.19 = 203,230.40/x
  3. Step 3: Cross multiply
    623,921.72x = 935,948.19 × 203,230.40
  4. Step 4: Simplify right side
    623,921.72x = 190,213,120,353.24
  5. Step 5: Solve for x
    x = 190,213,120,353.24/623,921.72
  6. Step 6: Final answer
    x = 304,866.97

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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.