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Finding the Fourth Proportional to 468,339.63, 646,308.64 and 253,479.68

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Solution

The fourth proportional to 468,339.63, 646,308.64 and 253,479.68 is: 349,801.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,339.63 : 646,308.64 = 253,479.68 : x
  2. Step 2: Convert to fraction form
    468,339.63/646,308.64 = 253,479.68/x
  3. Step 3: Cross multiply
    468,339.63x = 646,308.64 × 253,479.68
  4. Step 4: Simplify right side
    468,339.63x = 163,826,107,248.44
  5. Step 5: Solve for x
    x = 163,826,107,248.44/468,339.63
  6. Step 6: Final answer
    x = 349,801.93

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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.