Home / 383,065.52-528,619.58-208,631.76

Finding the Fourth Proportional to 383,065.52, 528,619.58 and 208,631.76

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Solution

The fourth proportional to 383,065.52, 528,619.58 and 208,631.76 is: 287,905.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,065.52 : 528,619.58 = 208,631.76 : x
  2. Step 2: Convert to fraction form
    383,065.52/528,619.58 = 208,631.76/x
  3. Step 3: Cross multiply
    383,065.52x = 528,619.58 × 208,631.76
  4. Step 4: Simplify right side
    383,065.52x = 110,286,833,345.86
  5. Step 5: Solve for x
    x = 110,286,833,345.86/383,065.52
  6. Step 6: Final answer
    x = 287,905.93

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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.