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Finding the Fourth Proportional to 682,392.34, 941,396.92 and 395,746.30

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Solution

The fourth proportional to 682,392.34, 941,396.92 and 395,746.30 is: 545,953.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,392.34 : 941,396.92 = 395,746.30 : x
  2. Step 2: Convert to fraction form
    682,392.34/941,396.92 = 395,746.30/x
  3. Step 3: Cross multiply
    682,392.34x = 941,396.92 × 395,746.30
  4. Step 4: Simplify right side
    682,392.34x = 372,554,347,921.40
  5. Step 5: Solve for x
    x = 372,554,347,921.40/682,392.34
  6. Step 6: Final answer
    x = 545,953.30

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Double scale
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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.