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Finding the Fourth Proportional to 1,226,469, 1,692,553.14 and 689,925

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Solution

The fourth proportional to 1,226,469, 1,692,553.14 and 689,925 is: 952,111.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,469 : 1,692,553.14 = 689,925 : x
  2. Step 2: Convert to fraction form
    1,226,469/1,692,553.14 = 689,925/x
  3. Step 3: Cross multiply
    1,226,469x = 1,692,553.14 × 689,925
  4. Step 4: Simplify right side
    1,226,469x = 1,167,734,725,114.50
  5. Step 5: Solve for x
    x = 1,167,734,725,114.50/1,226,469
  6. Step 6: Final answer
    x = 952,111.08

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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.