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Finding the Fourth Proportional to 607,928.96, 838,924.80 and 339,656.96

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Solution

The fourth proportional to 607,928.96, 838,924.80 and 339,656.96 is: 468,717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,928.96 : 838,924.80 = 339,656.96 : x
  2. Step 2: Convert to fraction form
    607,928.96/838,924.80 = 339,656.96/x
  3. Step 3: Cross multiply
    607,928.96x = 838,924.80 × 339,656.96
  4. Step 4: Simplify right side
    607,928.96x = 284,946,647,236.61
  5. Step 5: Solve for x
    x = 284,946,647,236.61/607,928.96
  6. Step 6: Final answer
    x = 468,717.01

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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.