Home / 686,256.28-946,806.82-414,220.83

Finding the Fourth Proportional to 686,256.28, 946,806.82 and 414,220.83

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Solution

The fourth proportional to 686,256.28, 946,806.82 and 414,220.83 is: 571,487.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,256.28 : 946,806.82 = 414,220.83 : x
  2. Step 2: Convert to fraction form
    686,256.28/946,806.82 = 414,220.83/x
  3. Step 3: Cross multiply
    686,256.28x = 946,806.82 × 414,220.83
  4. Step 4: Simplify right side
    686,256.28x = 392,187,106,830.06
  5. Step 5: Solve for x
    x = 392,187,106,830.06/686,256.28
  6. Step 6: Final answer
    x = 571,487.82

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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.