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Finding the Fourth Proportional to 610,795.10, 842,998.41 and 338,950.31

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Solution

The fourth proportional to 610,795.10, 842,998.41 and 338,950.31 is: 467,807.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,795.10 : 842,998.41 = 338,950.31 : x
  2. Step 2: Convert to fraction form
    610,795.10/842,998.41 = 338,950.31/x
  3. Step 3: Cross multiply
    610,795.10x = 842,998.41 × 338,950.31
  4. Step 4: Simplify right side
    610,795.10x = 285,734,570,704.26
  5. Step 5: Solve for x
    x = 285,734,570,704.26/610,795.10
  6. Step 6: Final answer
    x = 467,807.57

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1.5x scale

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.