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Finding the Fourth Proportional to 289,504.29, 436,228.57 and 238,066.05

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Solution

The fourth proportional to 289,504.29, 436,228.57 and 238,066.05 is: 358,720.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,504.29 : 436,228.57 = 238,066.05 : x
  2. Step 2: Convert to fraction form
    289,504.29/436,228.57 = 238,066.05/x
  3. Step 3: Cross multiply
    289,504.29x = 436,228.57 × 238,066.05
  4. Step 4: Simplify right side
    289,504.29x = 103,851,211,961.88
  5. Step 5: Solve for x
    x = 103,851,211,961.88/289,504.29
  6. Step 6: Final answer
    x = 358,720.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.