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Finding the Fourth Proportional to 702,224.64, 968,999.76 and 396,273.60

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Solution

The fourth proportional to 702,224.64, 968,999.76 and 396,273.60 is: 546,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,224.64 : 968,999.76 = 396,273.60 : x
  2. Step 2: Convert to fraction form
    702,224.64/968,999.76 = 396,273.60/x
  3. Step 3: Cross multiply
    702,224.64x = 968,999.76 × 396,273.60
  4. Step 4: Simplify right side
    702,224.64x = 383,989,023,294.34
  5. Step 5: Solve for x
    x = 383,989,023,294.34/702,224.64
  6. Step 6: Final answer
    x = 546,817.93

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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.