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Finding the Fourth Proportional to 544,111.40, 816,167.10 and 211,687.40

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Solution

The fourth proportional to 544,111.40, 816,167.10 and 211,687.40 is: 317,531.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,111.40 : 816,167.10 = 211,687.40 : x
  2. Step 2: Convert to fraction form
    544,111.40/816,167.10 = 211,687.40/x
  3. Step 3: Cross multiply
    544,111.40x = 816,167.10 × 211,687.40
  4. Step 4: Simplify right side
    544,111.40x = 172,772,291,364.54
  5. Step 5: Solve for x
    x = 172,772,291,364.54/544,111.40
  6. Step 6: Final answer
    x = 317,531.10

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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.