Home / 383,417.18-529,117.81-222,367.72

Finding the Fourth Proportional to 383,417.18, 529,117.81 and 222,367.72

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Solution

The fourth proportional to 383,417.18, 529,117.81 and 222,367.72 is: 306,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,417.18 : 529,117.81 = 222,367.72 : x
  2. Step 2: Convert to fraction form
    383,417.18/529,117.81 = 222,367.72/x
  3. Step 3: Cross multiply
    383,417.18x = 529,117.81 × 222,367.72
  4. Step 4: Simplify right side
    383,417.18x = 117,658,718,375.50
  5. Step 5: Solve for x
    x = 117,658,718,375.50/383,417.18
  6. Step 6: Final answer
    x = 306,868.67

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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.