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Finding the Fourth Proportional to 626,659.92, 864,795.77 and 347,261.78

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Solution

The fourth proportional to 626,659.92, 864,795.77 and 347,261.78 is: 479,224.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,659.92 : 864,795.77 = 347,261.78 : x
  2. Step 2: Convert to fraction form
    626,659.92/864,795.77 = 347,261.78/x
  3. Step 3: Cross multiply
    626,659.92x = 864,795.77 × 347,261.78
  4. Step 4: Simplify right side
    626,659.92x = 300,310,518,426.67
  5. Step 5: Solve for x
    x = 300,310,518,426.67/626,659.92
  6. Step 6: Final answer
    x = 479,224.07

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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.