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Finding the Fourth Proportional to 700,646.52, 959,889.21 and 674,406.30

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Solution

The fourth proportional to 700,646.52, 959,889.21 and 674,406.30 is: 923,939.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,646.52 : 959,889.21 = 674,406.30 : x
  2. Step 2: Convert to fraction form
    700,646.52/959,889.21 = 674,406.30/x
  3. Step 3: Cross multiply
    700,646.52x = 959,889.21 × 674,406.30
  4. Step 4: Simplify right side
    700,646.52x = 647,355,330,526.02
  5. Step 5: Solve for x
    x = 647,355,330,526.02/700,646.52
  6. Step 6: Final answer
    x = 923,939.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.