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Finding the Fourth Proportional to 669,063.54, 923,314.50 and 363,142.48

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Solution

The fourth proportional to 669,063.54, 923,314.50 and 363,142.48 is: 501,140.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,063.54 : 923,314.50 = 363,142.48 : x
  2. Step 2: Convert to fraction form
    669,063.54/923,314.50 = 363,142.48/x
  3. Step 3: Cross multiply
    669,063.54x = 923,314.50 × 363,142.48
  4. Step 4: Simplify right side
    669,063.54x = 335,294,717,349.96
  5. Step 5: Solve for x
    x = 335,294,717,349.96/669,063.54
  6. Step 6: Final answer
    x = 501,140.32

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Double scale
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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.