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Finding the Fourth Proportional to 352,430.84, 486,355.04 and 191,285.85

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Solution

The fourth proportional to 352,430.84, 486,355.04 and 191,285.85 is: 263,974.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,430.84 : 486,355.04 = 191,285.85 : x
  2. Step 2: Convert to fraction form
    352,430.84/486,355.04 = 191,285.85/x
  3. Step 3: Cross multiply
    352,430.84x = 486,355.04 × 191,285.85
  4. Step 4: Simplify right side
    352,430.84x = 93,032,836,271.75
  5. Step 5: Solve for x
    x = 93,032,836,271.75/352,430.84
  6. Step 6: Final answer
    x = 263,974.73

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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.