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Finding the Fourth Proportional to 607,309.10, 838,077.81 and 335,388.50

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Solution

The fourth proportional to 607,309.10, 838,077.81 and 335,388.50 is: 462,831.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,309.10 : 838,077.81 = 335,388.50 : x
  2. Step 2: Convert to fraction form
    607,309.10/838,077.81 = 335,388.50/x
  3. Step 3: Cross multiply
    607,309.10x = 838,077.81 × 335,388.50
  4. Step 4: Simplify right side
    607,309.10x = 281,081,659,579.19
  5. Step 5: Solve for x
    x = 281,081,659,579.19/607,309.10
  6. Step 6: Final answer
    x = 462,831.30

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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.