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Finding the Fourth Proportional to 683,999.40, 959,173.80 and 683,999.40

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Solution

The fourth proportional to 683,999.40, 959,173.80 and 683,999.40 is: 959,173.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,999.40 : 959,173.80 = 683,999.40 : x
  2. Step 2: Convert to fraction form
    683,999.40/959,173.80 = 683,999.40/x
  3. Step 3: Cross multiply
    683,999.40x = 959,173.80 × 683,999.40
  4. Step 4: Simplify right side
    683,999.40x = 656,074,303,695.72
  5. Step 5: Solve for x
    x = 656,074,303,695.72/683,999.40
  6. Step 6: Final answer
    x = 959,173.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.