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Finding the Fourth Proportional to 427,886.88, 590,488.56 and 236,903.64

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Solution

The fourth proportional to 427,886.88, 590,488.56 and 236,903.64 is: 326,929.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,886.88 : 590,488.56 = 236,903.64 : x
  2. Step 2: Convert to fraction form
    427,886.88/590,488.56 = 236,903.64/x
  3. Step 3: Cross multiply
    427,886.88x = 590,488.56 × 236,903.64
  4. Step 4: Simplify right side
    427,886.88x = 139,888,889,242.36
  5. Step 5: Solve for x
    x = 139,888,889,242.36/427,886.88
  6. Step 6: Final answer
    x = 326,929.61

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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.