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Finding the Fourth Proportional to 439,563.51, 606,600.56 and 255,911.54

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Solution

The fourth proportional to 439,563.51, 606,600.56 and 255,911.54 is: 353,159.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,563.51 : 606,600.56 = 255,911.54 : x
  2. Step 2: Convert to fraction form
    439,563.51/606,600.56 = 255,911.54/x
  3. Step 3: Cross multiply
    439,563.51x = 606,600.56 × 255,911.54
  4. Step 4: Simplify right side
    439,563.51x = 155,236,081,081.24
  5. Step 5: Solve for x
    x = 155,236,081,081.24/439,563.51
  6. Step 6: Final answer
    x = 353,159.62

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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.