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Finding the Fourth Proportional to 532,603.44, 734,989 and 290,886.12

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Solution

The fourth proportional to 532,603.44, 734,989 and 290,886.12 is: 401,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,603.44 : 734,989 = 290,886.12 : x
  2. Step 2: Convert to fraction form
    532,603.44/734,989 = 290,886.12/x
  3. Step 3: Cross multiply
    532,603.44x = 734,989 × 290,886.12
  4. Step 4: Simplify right side
    532,603.44x = 213,798,098,452.68
  5. Step 5: Solve for x
    x = 213,798,098,452.68/532,603.44
  6. Step 6: Final answer
    x = 401,420.80

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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.