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Finding the Fourth Proportional to 569,896.05, 786,388.05 and 328,257.21

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Solution

The fourth proportional to 569,896.05, 786,388.05 and 328,257.21 is: 452,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,896.05 : 786,388.05 = 328,257.21 : x
  2. Step 2: Convert to fraction form
    569,896.05/786,388.05 = 328,257.21/x
  3. Step 3: Cross multiply
    569,896.05x = 786,388.05 × 328,257.21
  4. Step 4: Simplify right side
    569,896.05x = 258,137,547,270.34
  5. Step 5: Solve for x
    x = 258,137,547,270.34/569,896.05
  6. Step 6: Final answer
    x = 452,955.49

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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.