Home / 686,439.47-946,236.41-481,916.63

Finding the Fourth Proportional to 686,439.47, 946,236.41 and 481,916.63

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Solution

The fourth proportional to 686,439.47, 946,236.41 and 481,916.63 is: 664,307.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,439.47 : 946,236.41 = 481,916.63 : x
  2. Step 2: Convert to fraction form
    686,439.47/946,236.41 = 481,916.63/x
  3. Step 3: Cross multiply
    686,439.47x = 946,236.41 × 481,916.63
  4. Step 4: Simplify right side
    686,439.47x = 456,007,059,480.92
  5. Step 5: Solve for x
    x = 456,007,059,480.92/686,439.47
  6. Step 6: Final answer
    x = 664,307.75

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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.