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Finding the Fourth Proportional to 606,443.80, 909,665.70 and 576,919.30

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Solution

The fourth proportional to 606,443.80, 909,665.70 and 576,919.30 is: 865,378.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,443.80 : 909,665.70 = 576,919.30 : x
  2. Step 2: Convert to fraction form
    606,443.80/909,665.70 = 576,919.30/x
  3. Step 3: Cross multiply
    606,443.80x = 909,665.70 × 576,919.30
  4. Step 4: Simplify right side
    606,443.80x = 524,803,698,878.01
  5. Step 5: Solve for x
    x = 524,803,698,878.01/606,443.80
  6. Step 6: Final answer
    x = 865,378.95

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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.