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Finding the Fourth Proportional to 461,983, 637,536.54 and 250,015

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Solution

The fourth proportional to 461,983, 637,536.54 and 250,015 is: 345,020.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,983 : 637,536.54 = 250,015 : x
  2. Step 2: Convert to fraction form
    461,983/637,536.54 = 250,015/x
  3. Step 3: Cross multiply
    461,983x = 637,536.54 × 250,015
  4. Step 4: Simplify right side
    461,983x = 159,393,698,048.10
  5. Step 5: Solve for x
    x = 159,393,698,048.10/461,983
  6. Step 6: Final answer
    x = 345,020.70

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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.