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Finding the Fourth Proportional to 632,888.73, 873,384.98 and 346,406.31

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Solution

The fourth proportional to 632,888.73, 873,384.98 and 346,406.31 is: 478,039.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,888.73 : 873,384.98 = 346,406.31 : x
  2. Step 2: Convert to fraction form
    632,888.73/873,384.98 = 346,406.31/x
  3. Step 3: Cross multiply
    632,888.73x = 873,384.98 × 346,406.31
  4. Step 4: Simplify right side
    632,888.73x = 302,546,068,131.22
  5. Step 5: Solve for x
    x = 302,546,068,131.22/632,888.73
  6. Step 6: Final answer
    x = 478,039.90

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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.