Home / 479,566.60-661,817.94-261,788.20

Finding the Fourth Proportional to 479,566.60, 661,817.94 and 261,788.20

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Solution

The fourth proportional to 479,566.60, 661,817.94 and 261,788.20 is: 361,276.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,566.60 : 661,817.94 = 261,788.20 : x
  2. Step 2: Convert to fraction form
    479,566.60/661,817.94 = 261,788.20/x
  3. Step 3: Cross multiply
    479,566.60x = 661,817.94 × 261,788.20
  4. Step 4: Simplify right side
    479,566.60x = 173,256,127,240.31
  5. Step 5: Solve for x
    x = 173,256,127,240.31/479,566.60
  6. Step 6: Final answer
    x = 361,276.47

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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.