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Finding the Fourth Proportional to 578,896.61, 798,877.31 and 352,542.11

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Solution

The fourth proportional to 578,896.61, 798,877.31 and 352,542.11 is: 486,508.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,896.61 : 798,877.31 = 352,542.11 : x
  2. Step 2: Convert to fraction form
    578,896.61/798,877.31 = 352,542.11/x
  3. Step 3: Cross multiply
    578,896.61x = 798,877.31 × 352,542.11
  4. Step 4: Simplify right side
    578,896.61x = 281,637,886,741.43
  5. Step 5: Solve for x
    x = 281,637,886,741.43/578,896.61
  6. Step 6: Final answer
    x = 486,508.10

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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.