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Finding the Fourth Proportional to 555,024.44, 765,933.41 and 313,309.10

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Solution

The fourth proportional to 555,024.44, 765,933.41 and 313,309.10 is: 432,366.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,024.44 : 765,933.41 = 313,309.10 : x
  2. Step 2: Convert to fraction form
    555,024.44/765,933.41 = 313,309.10/x
  3. Step 3: Cross multiply
    555,024.44x = 765,933.41 × 313,309.10
  4. Step 4: Simplify right side
    555,024.44x = 239,973,907,347.03
  5. Step 5: Solve for x
    x = 239,973,907,347.03/555,024.44
  6. Step 6: Final answer
    x = 432,366.38

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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.