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Finding the Fourth Proportional to 298,950.09, 412,317.84 and 191,530.18

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Solution

The fourth proportional to 298,950.09, 412,317.84 and 191,530.18 is: 264,162.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,950.09 : 412,317.84 = 191,530.18 : x
  2. Step 2: Convert to fraction form
    298,950.09/412,317.84 = 191,530.18/x
  3. Step 3: Cross multiply
    298,950.09x = 412,317.84 × 191,530.18
  4. Step 4: Simplify right side
    298,950.09x = 78,971,310,112.41
  5. Step 5: Solve for x
    x = 78,971,310,112.41/298,950.09
  6. Step 6: Final answer
    x = 264,162.19

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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.