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Finding the Fourth Proportional to 532,698.94, 735,120.18 and 290,981.58

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Solution

The fourth proportional to 532,698.94, 735,120.18 and 290,981.58 is: 401,552.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,698.94 : 735,120.18 = 290,981.58 : x
  2. Step 2: Convert to fraction form
    532,698.94/735,120.18 = 290,981.58/x
  3. Step 3: Cross multiply
    532,698.94x = 735,120.18 × 290,981.58
  4. Step 4: Simplify right side
    532,698.94x = 213,906,431,466.28
  5. Step 5: Solve for x
    x = 213,906,431,466.28/532,698.94
  6. Step 6: Final answer
    x = 401,552.20

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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.