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Finding the Fourth Proportional to 532,611.51, 734,999.94 and 290,894.19

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Solution

The fourth proportional to 532,611.51, 734,999.94 and 290,894.19 is: 401,431.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,611.51 : 734,999.94 = 290,894.19 : x
  2. Step 2: Convert to fraction form
    532,611.51/734,999.94 = 290,894.19/x
  3. Step 3: Cross multiply
    532,611.51x = 734,999.94 × 290,894.19
  4. Step 4: Simplify right side
    532,611.51x = 213,807,212,196.35
  5. Step 5: Solve for x
    x = 213,807,212,196.35/532,611.51
  6. Step 6: Final answer
    x = 401,431.83

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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.