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Finding the Fourth Proportional to 569,842.35, 786,537.91 and 354,855.39

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Solution

The fourth proportional to 569,842.35, 786,537.91 and 354,855.39 is: 489,797.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,842.35 : 786,537.91 = 354,855.39 : x
  2. Step 2: Convert to fraction form
    569,842.35/786,537.91 = 354,855.39/x
  3. Step 3: Cross multiply
    569,842.35x = 786,537.91 × 354,855.39
  4. Step 4: Simplify right side
    569,842.35x = 279,107,216,802.84
  5. Step 5: Solve for x
    x = 279,107,216,802.84/569,842.35
  6. Step 6: Final answer
    x = 489,797.25

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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.