Home / 686,900.04-947,098.26-445,094.36

Finding the Fourth Proportional to 686,900.04, 947,098.26 and 445,094.36

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Solution

The fourth proportional to 686,900.04, 947,098.26 and 445,094.36 is: 613,696.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,900.04 : 947,098.26 = 445,094.36 : x
  2. Step 2: Convert to fraction form
    686,900.04/947,098.26 = 445,094.36/x
  3. Step 3: Cross multiply
    686,900.04x = 947,098.26 × 445,094.36
  4. Step 4: Simplify right side
    686,900.04x = 421,548,093,891.81
  5. Step 5: Solve for x
    x = 421,548,093,891.81/686,900.04
  6. Step 6: Final answer
    x = 613,696.42

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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.