Home / 641,923.80-886,777.58-512,692.60

Finding the Fourth Proportional to 641,923.80, 886,777.58 and 512,692.60

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Solution

The fourth proportional to 641,923.80, 886,777.58 and 512,692.60 is: 708,252.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,923.80 : 886,777.58 = 512,692.60 : x
  2. Step 2: Convert to fraction form
    641,923.80/886,777.58 = 512,692.60/x
  3. Step 3: Cross multiply
    641,923.80x = 886,777.58 × 512,692.60
  4. Step 4: Simplify right side
    641,923.80x = 454,644,305,807.39
  5. Step 5: Solve for x
    x = 454,644,305,807.39/641,923.80
  6. Step 6: Final answer
    x = 708,252.77

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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.