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Finding the Fourth Proportional to 578,338.16, 798,156.60 and 323,685.68

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Solution

The fourth proportional to 578,338.16, 798,156.60 and 323,685.68 is: 446,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,338.16 : 798,156.60 = 323,685.68 : x
  2. Step 2: Convert to fraction form
    578,338.16/798,156.60 = 323,685.68/x
  3. Step 3: Cross multiply
    578,338.16x = 798,156.60 × 323,685.68
  4. Step 4: Simplify right side
    578,338.16x = 258,351,861,817.49
  5. Step 5: Solve for x
    x = 258,351,861,817.49/578,338.16
  6. Step 6: Final answer
    x = 446,714.19

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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.