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Finding the Fourth Proportional to 479,598.40, 661,845.92 and 264,738.60

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Solution

The fourth proportional to 479,598.40, 661,845.92 and 264,738.60 is: 365,339.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,598.40 : 661,845.92 = 264,738.60 : x
  2. Step 2: Convert to fraction form
    479,598.40/661,845.92 = 264,738.60/x
  3. Step 3: Cross multiply
    479,598.40x = 661,845.92 × 264,738.60
  4. Step 4: Simplify right side
    479,598.40x = 175,216,162,276.51
  5. Step 5: Solve for x
    x = 175,216,162,276.51/479,598.40
  6. Step 6: Final answer
    x = 365,339.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.