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Finding the Fourth Proportional to 1,192,835.08, 1,788,873.54 and 393,967.72

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Solution

The fourth proportional to 1,192,835.08, 1,788,873.54 and 393,967.72 is: 590,826.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192,835.08 : 1,788,873.54 = 393,967.72 : x
  2. Step 2: Convert to fraction form
    1,192,835.08/1,788,873.54 = 393,967.72/x
  3. Step 3: Cross multiply
    1,192,835.08x = 1,788,873.54 × 393,967.72
  4. Step 4: Simplify right side
    1,192,835.08x = 704,758,429,922.13
  5. Step 5: Solve for x
    x = 704,758,429,922.13/1,192,835.08
  6. Step 6: Final answer
    x = 590,826.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.