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Finding the Fourth Proportional to 372,334.98, 513,831.15 and 211,200.90

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Solution

The fourth proportional to 372,334.98, 513,831.15 and 211,200.90 is: 291,462.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,334.98 : 513,831.15 = 211,200.90 : x
  2. Step 2: Convert to fraction form
    372,334.98/513,831.15 = 211,200.90/x
  3. Step 3: Cross multiply
    372,334.98x = 513,831.15 × 211,200.90
  4. Step 4: Simplify right side
    372,334.98x = 108,521,601,328.04
  5. Step 5: Solve for x
    x = 108,521,601,328.04/372,334.98
  6. Step 6: Final answer
    x = 291,462.28

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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.