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Finding the Fourth Proportional to 682,308.84, 941,543.58 and 376,388.76

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Solution

The fourth proportional to 682,308.84, 941,543.58 and 376,388.76 is: 519,392.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,308.84 : 941,543.58 = 376,388.76 : x
  2. Step 2: Convert to fraction form
    682,308.84/941,543.58 = 376,388.76/x
  3. Step 3: Cross multiply
    682,308.84x = 941,543.58 × 376,388.76
  4. Step 4: Simplify right side
    682,308.84x = 354,386,420,562.16
  5. Step 5: Solve for x
    x = 354,386,420,562.16/682,308.84
  6. Step 6: Final answer
    x = 519,392.98

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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.