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Finding the Fourth Proportional to 556,911.90, 835,462.62 and 219,776.13

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Solution

The fourth proportional to 556,911.90, 835,462.62 and 219,776.13 is: 329,701.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,911.90 : 835,462.62 = 219,776.13 : x
  2. Step 2: Convert to fraction form
    556,911.90/835,462.62 = 219,776.13/x
  3. Step 3: Cross multiply
    556,911.90x = 835,462.62 × 219,776.13
  4. Step 4: Simplify right side
    556,911.90x = 183,614,741,383.26
  5. Step 5: Solve for x
    x = 183,614,741,383.26/556,911.90
  6. Step 6: Final answer
    x = 329,701.59

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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.