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Finding the Fourth Proportional to 519,632.25, 717,094.67 and 281,168.25

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Solution

The fourth proportional to 519,632.25, 717,094.67 and 281,168.25 is: 388,013.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,632.25 : 717,094.67 = 281,168.25 : x
  2. Step 2: Convert to fraction form
    519,632.25/717,094.67 = 281,168.25/x
  3. Step 3: Cross multiply
    519,632.25x = 717,094.67 × 281,168.25
  4. Step 4: Simplify right side
    519,632.25x = 201,624,252,042.39
  5. Step 5: Solve for x
    x = 201,624,252,042.39/519,632.25
  6. Step 6: Final answer
    x = 388,013.35

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.