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Finding the Fourth Proportional to 633,111.81, 873,659.68 and 346,576.47

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Solution

The fourth proportional to 633,111.81, 873,659.68 and 346,576.47 is: 478,256.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,111.81 : 873,659.68 = 346,576.47 : x
  2. Step 2: Convert to fraction form
    633,111.81/873,659.68 = 346,576.47/x
  3. Step 3: Cross multiply
    633,111.81x = 873,659.68 × 346,576.47
  4. Step 4: Simplify right side
    633,111.81x = 302,789,887,875.73
  5. Step 5: Solve for x
    x = 302,789,887,875.73/633,111.81
  6. Step 6: Final answer
    x = 478,256.58

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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.