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Finding the Fourth Proportional to 658,231.20, 923,623.20 and 658,231.20

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Solution

The fourth proportional to 658,231.20, 923,623.20 and 658,231.20 is: 923,623.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,231.20 : 923,623.20 = 658,231.20 : x
  2. Step 2: Convert to fraction form
    658,231.20/923,623.20 = 658,231.20/x
  3. Step 3: Cross multiply
    658,231.20x = 923,623.20 × 658,231.20
  4. Step 4: Simplify right side
    658,231.20x = 607,957,607,283.84
  5. Step 5: Solve for x
    x = 607,957,607,283.84/658,231.20
  6. Step 6: Final answer
    x = 923,623.20

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Double scale
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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.