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Finding the Fourth Proportional to 347,503.20, 522,368.40 and 322,850.40

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Solution

The fourth proportional to 347,503.20, 522,368.40 and 322,850.40 is: 485,310.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,503.20 : 522,368.40 = 322,850.40 : x
  2. Step 2: Convert to fraction form
    347,503.20/522,368.40 = 322,850.40/x
  3. Step 3: Cross multiply
    347,503.20x = 522,368.40 × 322,850.40
  4. Step 4: Simplify right side
    347,503.20x = 168,646,846,887.36
  5. Step 5: Solve for x
    x = 168,646,846,887.36/347,503.20
  6. Step 6: Final answer
    x = 485,310.20

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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.