Home / 977,650.70-1,347,744.22-686,375.51

Finding the Fourth Proportional to 977,650.70, 1,347,744.22 and 686,375.51

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Solution

The fourth proportional to 977,650.70, 1,347,744.22 and 686,375.51 is: 946,205.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,650.70 : 1,347,744.22 = 686,375.51 : x
  2. Step 2: Convert to fraction form
    977,650.70/1,347,744.22 = 686,375.51/x
  3. Step 3: Cross multiply
    977,650.70x = 1,347,744.22 × 686,375.51
  4. Step 4: Simplify right side
    977,650.70x = 925,058,617,897.39
  5. Step 5: Solve for x
    x = 925,058,617,897.39/977,650.70
  6. Step 6: Final answer
    x = 946,205.66

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Double scale
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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.