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Finding the Fourth Proportional to 700,099.71, 966,189.26 and 394,209.48

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Solution

The fourth proportional to 700,099.71, 966,189.26 and 394,209.48 is: 544,038.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,099.71 : 966,189.26 = 394,209.48 : x
  2. Step 2: Convert to fraction form
    700,099.71/966,189.26 = 394,209.48/x
  3. Step 3: Cross multiply
    700,099.71x = 966,189.26 × 394,209.48
  4. Step 4: Simplify right side
    700,099.71x = 380,880,970,374.92
  5. Step 5: Solve for x
    x = 380,880,970,374.92/700,099.71
  6. Step 6: Final answer
    x = 544,038.18

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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.