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Finding the Fourth Proportional to 507,953.60, 761,906.10 and 170,961.20

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Solution

The fourth proportional to 507,953.60, 761,906.10 and 170,961.20 is: 256,433.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,953.60 : 761,906.10 = 170,961.20 : x
  2. Step 2: Convert to fraction form
    507,953.60/761,906.10 = 170,961.20/x
  3. Step 3: Cross multiply
    507,953.60x = 761,906.10 × 170,961.20
  4. Step 4: Simplify right side
    507,953.60x = 130,256,381,143.32
  5. Step 5: Solve for x
    x = 130,256,381,143.32/507,953.60
  6. Step 6: Final answer
    x = 256,433.62

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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.