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Finding the Fourth Proportional to 606,438.80, 909,658.20 and 576,914.30

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Solution

The fourth proportional to 606,438.80, 909,658.20 and 576,914.30 is: 865,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,438.80 : 909,658.20 = 576,914.30 : x
  2. Step 2: Convert to fraction form
    606,438.80/909,658.20 = 576,914.30/x
  3. Step 3: Cross multiply
    606,438.80x = 909,658.20 × 576,914.30
  4. Step 4: Simplify right side
    606,438.80x = 524,794,823,692.26
  5. Step 5: Solve for x
    x = 524,794,823,692.26/606,438.80
  6. Step 6: Final answer
    x = 865,371.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.