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Finding the Fourth Proportional to 352,451.48, 486,369.93 and 191,303.06

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Solution

The fourth proportional to 352,451.48, 486,369.93 and 191,303.06 is: 263,991.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,451.48 : 486,369.93 = 191,303.06 : x
  2. Step 2: Convert to fraction form
    352,451.48/486,369.93 = 191,303.06/x
  3. Step 3: Cross multiply
    352,451.48x = 486,369.93 × 191,303.06
  4. Step 4: Simplify right side
    352,451.48x = 93,044,053,469.14
  5. Step 5: Solve for x
    x = 93,044,053,469.14/352,451.48
  6. Step 6: Final answer
    x = 263,991.10

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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.