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Finding the Fourth Proportional to 605,328.90, 834,953.84 and 378,580.74

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Solution

The fourth proportional to 605,328.90, 834,953.84 and 378,580.74 is: 522,191.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,328.90 : 834,953.84 = 378,580.74 : x
  2. Step 2: Convert to fraction form
    605,328.90/834,953.84 = 378,580.74/x
  3. Step 3: Cross multiply
    605,328.90x = 834,953.84 × 378,580.74
  4. Step 4: Simplify right side
    605,328.90x = 316,097,442,613.04
  5. Step 5: Solve for x
    x = 316,097,442,613.04/605,328.90
  6. Step 6: Final answer
    x = 522,191.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.