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Finding the Fourth Proportional to 341,407.40, 512,111.10 and 235,119.20

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Solution

The fourth proportional to 341,407.40, 512,111.10 and 235,119.20 is: 352,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,407.40 : 512,111.10 = 235,119.20 : x
  2. Step 2: Convert to fraction form
    341,407.40/512,111.10 = 235,119.20/x
  3. Step 3: Cross multiply
    341,407.40x = 512,111.10 × 235,119.20
  4. Step 4: Simplify right side
    341,407.40x = 120,407,152,143.12
  5. Step 5: Solve for x
    x = 120,407,152,143.12/341,407.40
  6. Step 6: Final answer
    x = 352,678.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.