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Finding the Fourth Proportional to 1,754,126, 2,631,605 and 572,174

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Solution

The fourth proportional to 1,754,126, 2,631,605 and 572,174 is: 858,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,754,126 : 2,631,605 = 572,174 : x
  2. Step 2: Convert to fraction form
    1,754,126/2,631,605 = 572,174/x
  3. Step 3: Cross multiply
    1,754,126x = 2,631,605 × 572,174
  4. Step 4: Simplify right side
    1,754,126x = 1,505,735,959,270
  5. Step 5: Solve for x
    x = 1,505,735,959,270/1,754,126
  6. Step 6: Final answer
    x = 858,396.69

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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.