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Finding the Fourth Proportional to 606,390.10, 909,628.35 and 185,665.30

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Solution

The fourth proportional to 606,390.10, 909,628.35 and 185,665.30 is: 278,511.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,390.10 : 909,628.35 = 185,665.30 : x
  2. Step 2: Convert to fraction form
    606,390.10/909,628.35 = 185,665.30/x
  3. Step 3: Cross multiply
    606,390.10x = 909,628.35 × 185,665.30
  4. Step 4: Simplify right side
    606,390.10x = 168,886,420,491.26
  5. Step 5: Solve for x
    x = 168,886,420,491.26/606,390.10
  6. Step 6: Final answer
    x = 278,511.18

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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.