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Finding the Fourth Proportional to 1,212,132, 1,672,794 and 675,588

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Solution

The fourth proportional to 1,212,132, 1,672,794 and 675,588 is: 932,340.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,132 : 1,672,794 = 675,588 : x
  2. Step 2: Convert to fraction form
    1,212,132/1,672,794 = 675,588/x
  3. Step 3: Cross multiply
    1,212,132x = 1,672,794 × 675,588
  4. Step 4: Simplify right side
    1,212,132x = 1,130,119,552,872
  5. Step 5: Solve for x
    x = 1,130,119,552,872/1,212,132
  6. Step 6: Final answer
    x = 932,340.33

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1.5x scale

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.