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Finding the Fourth Proportional to 493,490.56, 740,461.20 and 268,513.60

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Solution

The fourth proportional to 493,490.56, 740,461.20 and 268,513.60 is: 402,893.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,490.56 : 740,461.20 = 268,513.60 : x
  2. Step 2: Convert to fraction form
    493,490.56/740,461.20 = 268,513.60/x
  3. Step 3: Cross multiply
    493,490.56x = 740,461.20 × 268,513.60
  4. Step 4: Simplify right side
    493,490.56x = 198,823,902,472.32
  5. Step 5: Solve for x
    x = 198,823,902,472.32/493,490.56
  6. Step 6: Final answer
    x = 402,893.02

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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.