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Finding the Fourth Proportional to 606,407.80, 909,611.70 and 576,883.30

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Solution

The fourth proportional to 606,407.80, 909,611.70 and 576,883.30 is: 865,324.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,407.80 : 909,611.70 = 576,883.30 : x
  2. Step 2: Convert to fraction form
    606,407.80/909,611.70 = 576,883.30/x
  3. Step 3: Cross multiply
    606,407.80x = 909,611.70 × 576,883.30
  4. Step 4: Simplify right side
    606,407.80x = 524,739,799,214.61
  5. Step 5: Solve for x
    x = 524,739,799,214.61/606,407.80
  6. Step 6: Final answer
    x = 865,324.95

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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.