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Finding the Fourth Proportional to 611,774.65, 844,384.05 and 339,935.98

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Solution

The fourth proportional to 611,774.65, 844,384.05 and 339,935.98 is: 469,186.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,774.65 : 844,384.05 = 339,935.98 : x
  2. Step 2: Convert to fraction form
    611,774.65/844,384.05 = 339,935.98/x
  3. Step 3: Cross multiply
    611,774.65x = 844,384.05 × 339,935.98
  4. Step 4: Simplify right side
    611,774.65x = 287,036,519,533.12
  5. Step 5: Solve for x
    x = 287,036,519,533.12/611,774.65
  6. Step 6: Final answer
    x = 469,186.68

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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.