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Finding the Fourth Proportional to 461,956, 637,499.60 and 249,988

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Solution

The fourth proportional to 461,956, 637,499.60 and 249,988 is: 344,983.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,956 : 637,499.60 = 249,988 : x
  2. Step 2: Convert to fraction form
    461,956/637,499.60 = 249,988/x
  3. Step 3: Cross multiply
    461,956x = 637,499.60 × 249,988
  4. Step 4: Simplify right side
    461,956x = 159,367,250,004.80
  5. Step 5: Solve for x
    x = 159,367,250,004.80/461,956
  6. Step 6: Final answer
    x = 344,983.61

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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.