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Finding the Fourth Proportional to 1,754,124, 2,631,602 and 572,172

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Solution

The fourth proportional to 1,754,124, 2,631,602 and 572,172 is: 858,393.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754,124 : 2,631,602 = 572,172 : x
  2. Step 2: Convert to fraction form
    1,754,124/2,631,602 = 572,172/x
  3. Step 3: Cross multiply
    1,754,124x = 2,631,602 × 572,172
  4. Step 4: Simplify right side
    1,754,124x = 1,505,728,979,544
  5. Step 5: Solve for x
    x = 1,505,728,979,544/1,754,124
  6. Step 6: Final answer
    x = 858,393.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.