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Finding the Fourth Proportional to 352,438.92, 486,366.21 and 191,294.01

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Solution

The fourth proportional to 352,438.92, 486,366.21 and 191,294.01 is: 263,986.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,438.92 : 486,366.21 = 191,294.01 : x
  2. Step 2: Convert to fraction form
    352,438.92/486,366.21 = 191,294.01/x
  3. Step 3: Cross multiply
    352,438.92x = 486,366.21 × 191,294.01
  4. Step 4: Simplify right side
    352,438.92x = 93,038,942,639.40
  5. Step 5: Solve for x
    x = 93,038,942,639.40/352,438.92
  6. Step 6: Final answer
    x = 263,986.01

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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.