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Finding the Fourth Proportional to 274,210.10, 411,315.15 and 239,218.10

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Solution

The fourth proportional to 274,210.10, 411,315.15 and 239,218.10 is: 358,827.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,210.10 : 411,315.15 = 239,218.10 : x
  2. Step 2: Convert to fraction form
    274,210.10/411,315.15 = 239,218.10/x
  3. Step 3: Cross multiply
    274,210.10x = 411,315.15 × 239,218.10
  4. Step 4: Simplify right side
    274,210.10x = 98,394,028,684.22
  5. Step 5: Solve for x
    x = 98,394,028,684.22/274,210.10
  6. Step 6: Final answer
    x = 358,827.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

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