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Finding the Fourth Proportional to 580,490.58, 870,705.12 and 181,085.58

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Solution

The fourth proportional to 580,490.58, 870,705.12 and 181,085.58 is: 271,618.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,490.58 : 870,705.12 = 181,085.58 : x
  2. Step 2: Convert to fraction form
    580,490.58/870,705.12 = 181,085.58/x
  3. Step 3: Cross multiply
    580,490.58x = 870,705.12 × 181,085.58
  4. Step 4: Simplify right side
    580,490.58x = 157,672,141,664.17
  5. Step 5: Solve for x
    x = 157,672,141,664.17/580,490.58
  6. Step 6: Final answer
    x = 271,618.78

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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.