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Finding the Fourth Proportional to 623,736.32, 860,754.94 and 351,803.39

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Solution

The fourth proportional to 623,736.32, 860,754.94 and 351,803.39 is: 485,488.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,736.32 : 860,754.94 = 351,803.39 : x
  2. Step 2: Convert to fraction form
    623,736.32/860,754.94 = 351,803.39/x
  3. Step 3: Cross multiply
    623,736.32x = 860,754.94 × 351,803.39
  4. Step 4: Simplify right side
    623,736.32x = 302,816,500,667.96
  5. Step 5: Solve for x
    x = 302,816,500,667.96/623,736.32
  6. Step 6: Final answer
    x = 485,488.01

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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.