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Finding the Fourth Proportional to 664,356.40, 996,534.60 and 265,058.80

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Solution

The fourth proportional to 664,356.40, 996,534.60 and 265,058.80 is: 397,588.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,356.40 : 996,534.60 = 265,058.80 : x
  2. Step 2: Convert to fraction form
    664,356.40/996,534.60 = 265,058.80/x
  3. Step 3: Cross multiply
    664,356.40x = 996,534.60 × 265,058.80
  4. Step 4: Simplify right side
    664,356.40x = 264,140,265,234.48
  5. Step 5: Solve for x
    x = 264,140,265,234.48/664,356.40
  6. Step 6: Final answer
    x = 397,588.20

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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.