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Finding the Fourth Proportional to 682,582.68, 941,898.78 and 380,796.12

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Solution

The fourth proportional to 682,582.68, 941,898.78 and 380,796.12 is: 525,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,582.68 : 941,898.78 = 380,796.12 : x
  2. Step 2: Convert to fraction form
    682,582.68/941,898.78 = 380,796.12/x
  3. Step 3: Cross multiply
    682,582.68x = 941,898.78 × 380,796.12
  4. Step 4: Simplify right side
    682,582.68x = 358,671,400,856.73
  5. Step 5: Solve for x
    x = 358,671,400,856.73/682,582.68
  6. Step 6: Final answer
    x = 525,462.21

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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.