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Finding the Fourth Proportional to 610,161.68, 915,277.34 and 205,191.38

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Solution

The fourth proportional to 610,161.68, 915,277.34 and 205,191.38 is: 307,798.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,161.68 : 915,277.34 = 205,191.38 : x
  2. Step 2: Convert to fraction form
    610,161.68/915,277.34 = 205,191.38/x
  3. Step 3: Cross multiply
    610,161.68x = 915,277.34 × 205,191.38
  4. Step 4: Simplify right side
    610,161.68x = 187,807,020,477.33
  5. Step 5: Solve for x
    x = 187,807,020,477.33/610,161.68
  6. Step 6: Final answer
    x = 307,798.78

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1.5x scale

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.