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Finding the Fourth Proportional to 633,080.21, 873,653.25 and 346,626.95

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Solution

The fourth proportional to 633,080.21, 873,653.25 and 346,626.95 is: 478,346.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,080.21 : 873,653.25 = 346,626.95 : x
  2. Step 2: Convert to fraction form
    633,080.21/873,653.25 = 346,626.95/x
  3. Step 3: Cross multiply
    633,080.21x = 873,653.25 × 346,626.95
  4. Step 4: Simplify right side
    633,080.21x = 302,831,757,036.82
  5. Step 5: Solve for x
    x = 302,831,757,036.82/633,080.21
  6. Step 6: Final answer
    x = 478,346.59

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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.