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Finding the Fourth Proportional to 669,363, 923,627.99 and 393,733.34

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Solution

The fourth proportional to 669,363, 923,627.99 and 393,733.34 is: 543,297.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,363 : 923,627.99 = 393,733.34 : x
  2. Step 2: Convert to fraction form
    669,363/923,627.99 = 393,733.34/x
  3. Step 3: Cross multiply
    669,363x = 923,627.99 × 393,733.34
  4. Step 4: Simplify right side
    669,363x = 363,663,126,833.38
  5. Step 5: Solve for x
    x = 363,663,126,833.38/669,363
  6. Step 6: Final answer
    x = 543,297.32

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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.