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Finding the Fourth Proportional to 351,313.40, 526,970.10 and 327,812.60

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Solution

The fourth proportional to 351,313.40, 526,970.10 and 327,812.60 is: 491,718.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,313.40 : 526,970.10 = 327,812.60 : x
  2. Step 2: Convert to fraction form
    351,313.40/526,970.10 = 327,812.60/x
  3. Step 3: Cross multiply
    351,313.40x = 526,970.10 × 327,812.60
  4. Step 4: Simplify right side
    351,313.40x = 172,747,438,603.26
  5. Step 5: Solve for x
    x = 172,747,438,603.26/351,313.40
  6. Step 6: Final answer
    x = 491,718.90

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1.5x scale

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.