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Finding the Fourth Proportional to 580,602.34, 870,958.32 and 225,643.60

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Solution

The fourth proportional to 580,602.34, 870,958.32 and 225,643.60 is: 338,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,602.34 : 870,958.32 = 225,643.60 : x
  2. Step 2: Convert to fraction form
    580,602.34/870,958.32 = 225,643.60/x
  3. Step 3: Cross multiply
    580,602.34x = 870,958.32 × 225,643.60
  4. Step 4: Simplify right side
    580,602.34x = 196,526,170,774.75
  5. Step 5: Solve for x
    x = 196,526,170,774.75/580,602.34
  6. Step 6: Final answer
    x = 338,486.70

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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.