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Finding the Fourth Proportional to 352,426.98, 486,349.65 and 191,282.07

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Solution

The fourth proportional to 352,426.98, 486,349.65 and 191,282.07 is: 263,969.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,426.98 : 486,349.65 = 191,282.07 : x
  2. Step 2: Convert to fraction form
    352,426.98/486,349.65 = 191,282.07/x
  3. Step 3: Cross multiply
    352,426.98x = 486,349.65 × 191,282.07
  4. Step 4: Simplify right side
    352,426.98x = 93,029,969,619.59
  5. Step 5: Solve for x
    x = 93,029,969,619.59/352,426.98
  6. Step 6: Final answer
    x = 263,969.49

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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.