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Finding the Fourth Proportional to 544,004.46, 816,145.11 and 319,554.72

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Solution

The fourth proportional to 544,004.46, 816,145.11 and 319,554.72 is: 479,413.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,004.46 : 816,145.11 = 319,554.72 : x
  2. Step 2: Convert to fraction form
    544,004.46/816,145.11 = 319,554.72/x
  3. Step 3: Cross multiply
    544,004.46x = 816,145.11 × 319,554.72
  4. Step 4: Simplify right side
    544,004.46x = 260,803,022,105.42
  5. Step 5: Solve for x
    x = 260,803,022,105.42/544,004.46
  6. Step 6: Final answer
    x = 479,413.39

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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.