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Finding the Fourth Proportional to 532,401.39, 734,730.14 and 302,991.68

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Solution

The fourth proportional to 532,401.39, 734,730.14 and 302,991.68 is: 418,137.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,401.39 : 734,730.14 = 302,991.68 : x
  2. Step 2: Convert to fraction form
    532,401.39/734,730.14 = 302,991.68/x
  3. Step 3: Cross multiply
    532,401.39x = 734,730.14 × 302,991.68
  4. Step 4: Simplify right side
    532,401.39x = 222,617,114,276.63
  5. Step 5: Solve for x
    x = 222,617,114,276.63/532,401.39
  6. Step 6: Final answer
    x = 418,137.74

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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.