Home / 656,057.07-984,396.65-390,342.51

Finding the Fourth Proportional to 656,057.07, 984,396.65 and 390,342.51

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Solution

The fourth proportional to 656,057.07, 984,396.65 and 390,342.51 is: 585,698.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,057.07 : 984,396.65 = 390,342.51 : x
  2. Step 2: Convert to fraction form
    656,057.07/984,396.65 = 390,342.51/x
  3. Step 3: Cross multiply
    656,057.07x = 984,396.65 × 390,342.51
  4. Step 4: Simplify right side
    656,057.07x = 384,251,857,244.88
  5. Step 5: Solve for x
    x = 384,251,857,244.88/656,057.07
  6. Step 6: Final answer
    x = 585,698.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.