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Finding the Fourth Proportional to 605,628.60, 906,693.30 and 369,432.60

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Solution

The fourth proportional to 605,628.60, 906,693.30 and 369,432.60 is: 553,081.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,628.60 : 906,693.30 = 369,432.60 : x
  2. Step 2: Convert to fraction form
    605,628.60/906,693.30 = 369,432.60/x
  3. Step 3: Cross multiply
    605,628.60x = 906,693.30 × 369,432.60
  4. Step 4: Simplify right side
    605,628.60x = 334,962,063,221.58
  5. Step 5: Solve for x
    x = 334,962,063,221.58/605,628.60
  6. Step 6: Final answer
    x = 553,081.65

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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.