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Finding the Fourth Proportional to 621,659.53, 932,602.02 and 256,921.73

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Solution

The fourth proportional to 621,659.53, 932,602.02 and 256,921.73 is: 385,429.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,659.53 : 932,602.02 = 256,921.73 : x
  2. Step 2: Convert to fraction form
    621,659.53/932,602.02 = 256,921.73/x
  3. Step 3: Cross multiply
    621,659.53x = 932,602.02 × 256,921.73
  4. Step 4: Simplify right side
    621,659.53x = 239,605,724,379.90
  5. Step 5: Solve for x
    x = 239,605,724,379.90/621,659.53
  6. Step 6: Final answer
    x = 385,429.18

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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.