Home / 1,095,857.05-1,512,279.80-612,421.78

Finding the Fourth Proportional to 1,095,857.05, 1,512,279.80 and 612,421.78

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Solution

The fourth proportional to 1,095,857.05, 1,512,279.80 and 612,421.78 is: 845,140.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095,857.05 : 1,512,279.80 = 612,421.78 : x
  2. Step 2: Convert to fraction form
    1,095,857.05/1,512,279.80 = 612,421.78/x
  3. Step 3: Cross multiply
    1,095,857.05x = 1,512,279.80 × 612,421.78
  4. Step 4: Simplify right side
    1,095,857.05x = 926,153,086,974.04
  5. Step 5: Solve for x
    x = 926,153,086,974.04/1,095,857.05
  6. Step 6: Final answer
    x = 845,140.42

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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.