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Finding the Fourth Proportional to 532,611.50, 734,992.47 and 290,895.01

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Solution

The fourth proportional to 532,611.50, 734,992.47 and 290,895.01 is: 401,428.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,611.50 : 734,992.47 = 290,895.01 : x
  2. Step 2: Convert to fraction form
    532,611.50/734,992.47 = 290,895.01/x
  3. Step 3: Cross multiply
    532,611.50x = 734,992.47 × 290,895.01
  4. Step 4: Simplify right side
    532,611.50x = 213,805,640,073.09
  5. Step 5: Solve for x
    x = 213,805,640,073.09/532,611.50
  6. Step 6: Final answer
    x = 401,428.89

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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.