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Finding the Fourth Proportional to 668,997.86, 923,217.53 and 363,074.16

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Solution

The fourth proportional to 668,997.86, 923,217.53 and 363,074.16 is: 501,042.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,997.86 : 923,217.53 = 363,074.16 : x
  2. Step 2: Convert to fraction form
    668,997.86/923,217.53 = 363,074.16/x
  3. Step 3: Cross multiply
    668,997.86x = 923,217.53 × 363,074.16
  4. Step 4: Simplify right side
    668,997.86x = 335,196,427,386.65
  5. Step 5: Solve for x
    x = 335,196,427,386.65/668,997.86
  6. Step 6: Final answer
    x = 501,042.60

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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.