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Finding the Fourth Proportional to 407,866.77, 562,923.56 and 339,775.90

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Solution

The fourth proportional to 407,866.77, 562,923.56 and 339,775.90 is: 468,946.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,866.77 : 562,923.56 = 339,775.90 : x
  2. Step 2: Convert to fraction form
    407,866.77/562,923.56 = 339,775.90/x
  3. Step 3: Cross multiply
    407,866.77x = 562,923.56 × 339,775.90
  4. Step 4: Simplify right side
    407,866.77x = 191,267,858,672.34
  5. Step 5: Solve for x
    x = 191,267,858,672.34/407,866.77
  6. Step 6: Final answer
    x = 468,946.90

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.