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Finding the Fourth Proportional to 569,767.41, 786,521.15 and 355,013.60

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Solution

The fourth proportional to 569,767.41, 786,521.15 and 355,013.60 is: 490,069.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,767.41 : 786,521.15 = 355,013.60 : x
  2. Step 2: Convert to fraction form
    569,767.41/786,521.15 = 355,013.60/x
  3. Step 3: Cross multiply
    569,767.41x = 786,521.15 × 355,013.60
  4. Step 4: Simplify right side
    569,767.41x = 279,225,699,229.97
  5. Step 5: Solve for x
    x = 279,225,699,229.97/569,767.41
  6. Step 6: Final answer
    x = 490,069.62

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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.