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Finding the Fourth Proportional to 519,765, 717,276.10 and 281,301

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Solution

The fourth proportional to 519,765, 717,276.10 and 281,301 is: 388,195.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,765 : 717,276.10 = 281,301 : x
  2. Step 2: Convert to fraction form
    519,765/717,276.10 = 281,301/x
  3. Step 3: Cross multiply
    519,765x = 717,276.10 × 281,301
  4. Step 4: Simplify right side
    519,765x = 201,770,484,206.10
  5. Step 5: Solve for x
    x = 201,770,484,206.10/519,765
  6. Step 6: Final answer
    x = 388,195.60

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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.