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Finding the Fourth Proportional to 504,782.96, 696,600.98 and 289,964.60

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Solution

The fourth proportional to 504,782.96, 696,600.98 and 289,964.60 is: 400,151.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,782.96 : 696,600.98 = 289,964.60 : x
  2. Step 2: Convert to fraction form
    504,782.96/696,600.98 = 289,964.60/x
  3. Step 3: Cross multiply
    504,782.96x = 696,600.98 × 289,964.60
  4. Step 4: Simplify right side
    504,782.96x = 201,989,624,525.31
  5. Step 5: Solve for x
    x = 201,989,624,525.31/504,782.96
  6. Step 6: Final answer
    x = 400,151.43

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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.