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Finding the Fourth Proportional to 529,971.28, 793,627.52 and 316,607.60

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Solution

The fourth proportional to 529,971.28, 793,627.52 and 316,607.60 is: 474,117.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,971.28 : 793,627.52 = 316,607.60 : x
  2. Step 2: Convert to fraction form
    529,971.28/793,627.52 = 316,607.60/x
  3. Step 3: Cross multiply
    529,971.28x = 793,627.52 × 316,607.60
  4. Step 4: Simplify right side
    529,971.28x = 251,268,504,401.15
  5. Step 5: Solve for x
    x = 251,268,504,401.15/529,971.28
  6. Step 6: Final answer
    x = 474,117.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.