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Finding the Fourth Proportional to 532,323.12, 734,617.02 and 290,615.88

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Solution

The fourth proportional to 532,323.12, 734,617.02 and 290,615.88 is: 401,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,323.12 : 734,617.02 = 290,615.88 : x
  2. Step 2: Convert to fraction form
    532,323.12/734,617.02 = 290,615.88/x
  3. Step 3: Cross multiply
    532,323.12x = 734,617.02 × 290,615.88
  4. Step 4: Simplify right side
    532,323.12x = 213,491,371,730.28
  5. Step 5: Solve for x
    x = 213,491,371,730.28/532,323.12
  6. Step 6: Final answer
    x = 401,055.98

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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.