Home / 377,192.58-520,398.30-213,831.60

Finding the Fourth Proportional to 377,192.58, 520,398.30 and 213,831.60

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Solution

The fourth proportional to 377,192.58, 520,398.30 and 213,831.60 is: 295,015.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,192.58 : 520,398.30 = 213,831.60 : x
  2. Step 2: Convert to fraction form
    377,192.58/520,398.30 = 213,831.60/x
  3. Step 3: Cross multiply
    377,192.58x = 520,398.30 × 213,831.60
  4. Step 4: Simplify right side
    377,192.58x = 111,277,601,126.28
  5. Step 5: Solve for x
    x = 111,277,601,126.28/377,192.58
  6. Step 6: Final answer
    x = 295,015.35

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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.