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Finding the Fourth Proportional to 983,592.72, 1,475,097.48 and 422,496

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Solution

The fourth proportional to 983,592.72, 1,475,097.48 and 422,496 is: 633,618.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,592.72 : 1,475,097.48 = 422,496 : x
  2. Step 2: Convert to fraction form
    983,592.72/1,475,097.48 = 422,496/x
  3. Step 3: Cross multiply
    983,592.72x = 1,475,097.48 × 422,496
  4. Step 4: Simplify right side
    983,592.72x = 623,222,784,910.08
  5. Step 5: Solve for x
    x = 623,222,784,910.08/983,592.72
  6. Step 6: Final answer
    x = 633,618.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.