Home / 669,065.86-923,324.63-378,677.42

Finding the Fourth Proportional to 669,065.86, 923,324.63 and 378,677.42

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Solution

The fourth proportional to 669,065.86, 923,324.63 and 378,677.42 is: 522,582.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,065.86 : 923,324.63 = 378,677.42 : x
  2. Step 2: Convert to fraction form
    669,065.86/923,324.63 = 378,677.42/x
  3. Step 3: Cross multiply
    669,065.86x = 923,324.63 × 378,677.42
  4. Step 4: Simplify right side
    669,065.86x = 349,642,188,710.86
  5. Step 5: Solve for x
    x = 349,642,188,710.86/669,065.86
  6. Step 6: Final answer
    x = 522,582.62

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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.