Home / 686,182.38-946,933.91-380,263.80

Finding the Fourth Proportional to 686,182.38, 946,933.91 and 380,263.80

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Solution

The fourth proportional to 686,182.38, 946,933.91 and 380,263.80 is: 524,765.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,182.38 : 946,933.91 = 380,263.80 : x
  2. Step 2: Convert to fraction form
    686,182.38/946,933.91 = 380,263.80/x
  3. Step 3: Cross multiply
    686,182.38x = 946,933.91 × 380,263.80
  4. Step 4: Simplify right side
    686,182.38x = 360,084,685,064.14
  5. Step 5: Solve for x
    x = 360,084,685,064.14/686,182.38
  6. Step 6: Final answer
    x = 524,765.27

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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.