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Finding the Fourth Proportional to 633,560.85, 874,335.84 and 347,080.86

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Solution

The fourth proportional to 633,560.85, 874,335.84 and 347,080.86 is: 478,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,560.85 : 874,335.84 = 347,080.86 : x
  2. Step 2: Convert to fraction form
    633,560.85/874,335.84 = 347,080.86/x
  3. Step 3: Cross multiply
    633,560.85x = 874,335.84 × 347,080.86
  4. Step 4: Simplify right side
    633,560.85x = 303,465,235,276.02
  5. Step 5: Solve for x
    x = 303,465,235,276.02/633,560.85
  6. Step 6: Final answer
    x = 478,983.57

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1.5x scale

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.