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Finding the Fourth Proportional to 662,583.33, 991,911.51 and 409,048.65

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Solution

The fourth proportional to 662,583.33, 991,911.51 and 409,048.65 is: 612,360.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,583.33 : 991,911.51 = 409,048.65 : x
  2. Step 2: Convert to fraction form
    662,583.33/991,911.51 = 409,048.65/x
  3. Step 3: Cross multiply
    662,583.33x = 991,911.51 × 409,048.65
  4. Step 4: Simplify right side
    662,583.33x = 405,740,064,084.96
  5. Step 5: Solve for x
    x = 405,740,064,084.96/662,583.33
  6. Step 6: Final answer
    x = 612,360.81

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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.