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Finding the Fourth Proportional to 633,091.50, 873,665.87 and 346,611.51

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Solution

The fourth proportional to 633,091.50, 873,665.87 and 346,611.51 is: 478,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,091.50 : 873,665.87 = 346,611.51 : x
  2. Step 2: Convert to fraction form
    633,091.50/873,665.87 = 346,611.51/x
  3. Step 3: Cross multiply
    633,091.50x = 873,665.87 × 346,611.51
  4. Step 4: Simplify right side
    633,091.50x = 302,822,646,436.16
  5. Step 5: Solve for x
    x = 302,822,646,436.16/633,091.50
  6. Step 6: Final answer
    x = 478,323.66

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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.