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Finding the Fourth Proportional to 532,335.52, 734,634.16 and 290,628.28

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Solution

The fourth proportional to 532,335.52, 734,634.16 and 290,628.28 is: 401,073.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,335.52 : 734,634.16 = 290,628.28 : x
  2. Step 2: Convert to fraction form
    532,335.52/734,634.16 = 290,628.28/x
  3. Step 3: Cross multiply
    532,335.52x = 734,634.16 × 290,628.28
  4. Step 4: Simplify right side
    532,335.52x = 213,505,459,786.89
  5. Step 5: Solve for x
    x = 213,505,459,786.89/532,335.52
  6. Step 6: Final answer
    x = 401,073.11

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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.