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Finding the Fourth Proportional to 607,408, 838,274.88 and 339,187.84

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Solution

The fourth proportional to 607,408, 838,274.88 and 339,187.84 is: 468,108.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,408 : 838,274.88 = 339,187.84 : x
  2. Step 2: Convert to fraction form
    607,408/838,274.88 = 339,187.84/x
  3. Step 3: Cross multiply
    607,408x = 838,274.88 × 339,187.84
  4. Step 4: Simplify right side
    607,408x = 284,332,645,873.46
  5. Step 5: Solve for x
    x = 284,332,645,873.46/607,408
  6. Step 6: Final answer
    x = 468,108.17

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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.