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Finding the Fourth Proportional to 607,618.38, 838,513.38 and 339,346.38

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Solution

The fourth proportional to 607,618.38, 838,513.38 and 339,346.38 is: 468,298.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,618.38 : 838,513.38 = 339,346.38 : x
  2. Step 2: Convert to fraction form
    607,618.38/838,513.38 = 339,346.38/x
  3. Step 3: Cross multiply
    607,618.38x = 838,513.38 × 339,346.38
  4. Step 4: Simplify right side
    607,618.38x = 284,546,480,084.56
  5. Step 5: Solve for x
    x = 284,546,480,084.56/607,618.38
  6. Step 6: Final answer
    x = 468,298.01

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1.5x scale

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.