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Finding the Fourth Proportional to 1,174,456, 1,620,750.90 and 637,912

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Solution

The fourth proportional to 1,174,456, 1,620,750.90 and 637,912 is: 880,319.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174,456 : 1,620,750.90 = 637,912 : x
  2. Step 2: Convert to fraction form
    1,174,456/1,620,750.90 = 637,912/x
  3. Step 3: Cross multiply
    1,174,456x = 1,620,750.90 × 637,912
  4. Step 4: Simplify right side
    1,174,456x = 1,033,896,448,120.80
  5. Step 5: Solve for x
    x = 1,033,896,448,120.80/1,174,456
  6. Step 6: Final answer
    x = 880,319.44

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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.