Home / 684,178.44-944,138.39-378,235.36

Finding the Fourth Proportional to 684,178.44, 944,138.39 and 378,235.36

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Solution

The fourth proportional to 684,178.44, 944,138.39 and 378,235.36 is: 521,949.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,178.44 : 944,138.39 = 378,235.36 : x
  2. Step 2: Convert to fraction form
    684,178.44/944,138.39 = 378,235.36/x
  3. Step 3: Cross multiply
    684,178.44x = 944,138.39 × 378,235.36
  4. Step 4: Simplify right side
    684,178.44x = 357,106,523,831.47
  5. Step 5: Solve for x
    x = 357,106,523,831.47/684,178.44
  6. Step 6: Final answer
    x = 521,949.40

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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.