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Finding the Fourth Proportional to 682,342.42, 941,642.33 and 395,949.10

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Solution

The fourth proportional to 682,342.42, 941,642.33 and 395,949.10 is: 546,415.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,342.42 : 941,642.33 = 395,949.10 : x
  2. Step 2: Convert to fraction form
    682,342.42/941,642.33 = 395,949.10/x
  3. Step 3: Cross multiply
    682,342.42x = 941,642.33 × 395,949.10
  4. Step 4: Simplify right side
    682,342.42x = 372,842,433,085.40
  5. Step 5: Solve for x
    x = 372,842,433,085.40/682,342.42
  6. Step 6: Final answer
    x = 546,415.44

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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.