Home / 433,287.18-649,653.80-208,199.70

Finding the Fourth Proportional to 433,287.18, 649,653.80 and 208,199.70

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Solution

The fourth proportional to 433,287.18, 649,653.80 and 208,199.70 is: 312,166.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,287.18 : 649,653.80 = 208,199.70 : x
  2. Step 2: Convert to fraction form
    433,287.18/649,653.80 = 208,199.70/x
  3. Step 3: Cross multiply
    433,287.18x = 649,653.80 × 208,199.70
  4. Step 4: Simplify right side
    433,287.18x = 135,257,725,222.86
  5. Step 5: Solve for x
    x = 135,257,725,222.86/433,287.18
  6. Step 6: Final answer
    x = 312,166.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.