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Finding the Fourth Proportional to 647,911.44, 894,111.68 and 357,525.68

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Solution

The fourth proportional to 647,911.44, 894,111.68 and 357,525.68 is: 493,382.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,911.44 : 894,111.68 = 357,525.68 : x
  2. Step 2: Convert to fraction form
    647,911.44/894,111.68 = 357,525.68/x
  3. Step 3: Cross multiply
    647,911.44x = 894,111.68 × 357,525.68
  4. Step 4: Simplify right side
    647,911.44x = 319,667,880,129.76
  5. Step 5: Solve for x
    x = 319,667,880,129.76/647,911.44
  6. Step 6: Final answer
    x = 493,382.06

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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.