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Finding the Fourth Proportional to 298,055.18, 411,314.28 and 169,018.13

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Solution

The fourth proportional to 298,055.18, 411,314.28 and 169,018.13 is: 233,243.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,055.18 : 411,314.28 = 169,018.13 : x
  2. Step 2: Convert to fraction form
    298,055.18/411,314.28 = 169,018.13/x
  3. Step 3: Cross multiply
    298,055.18x = 411,314.28 × 169,018.13
  4. Step 4: Simplify right side
    298,055.18x = 69,519,570,447.90
  5. Step 5: Solve for x
    x = 69,519,570,447.90/298,055.18
  6. Step 6: Final answer
    x = 233,243.96

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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.