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Finding the Fourth Proportional to 544,043.80, 816,065.70 and 411,333.40

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Solution

The fourth proportional to 544,043.80, 816,065.70 and 411,333.40 is: 617,000.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,043.80 : 816,065.70 = 411,333.40 : x
  2. Step 2: Convert to fraction form
    544,043.80/816,065.70 = 411,333.40/x
  3. Step 3: Cross multiply
    544,043.80x = 816,065.70 × 411,333.40
  4. Step 4: Simplify right side
    544,043.80x = 335,675,079,004.38
  5. Step 5: Solve for x
    x = 335,675,079,004.38/544,043.80
  6. Step 6: Final answer
    x = 617,000.10

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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.