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Finding the Fourth Proportional to 663,518.00, 915,627.67 and 373,121.30

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Solution

The fourth proportional to 663,518.00, 915,627.67 and 373,121.30 is: 514,892.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,518.00 : 915,627.67 = 373,121.30 : x
  2. Step 2: Convert to fraction form
    663,518.00/915,627.67 = 373,121.30/x
  3. Step 3: Cross multiply
    663,518.00x = 915,627.67 × 373,121.30
  4. Step 4: Simplify right side
    663,518.00x = 341,640,181,035.43
  5. Step 5: Solve for x
    x = 341,640,181,035.43/663,518.00
  6. Step 6: Final answer
    x = 514,892.11

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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.