Home / 383,718.08-529,583.04-220,438.40

Finding the Fourth Proportional to 383,718.08, 529,583.04 and 220,438.40

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Solution

The fourth proportional to 383,718.08, 529,583.04 and 220,438.40 is: 304,234.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,718.08 : 529,583.04 = 220,438.40 : x
  2. Step 2: Convert to fraction form
    383,718.08/529,583.04 = 220,438.40/x
  3. Step 3: Cross multiply
    383,718.08x = 529,583.04 × 220,438.40
  4. Step 4: Simplify right side
    383,718.08x = 116,740,438,004.74
  5. Step 5: Solve for x
    x = 116,740,438,004.74/383,718.08
  6. Step 6: Final answer
    x = 304,234.92

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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.