Home / 459,828.90-689,040.68-193,443.39

Finding the Fourth Proportional to 459,828.90, 689,040.68 and 193,443.39

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Solution

The fourth proportional to 459,828.90, 689,040.68 and 193,443.39 is: 289,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,828.90 : 689,040.68 = 193,443.39 : x
  2. Step 2: Convert to fraction form
    459,828.90/689,040.68 = 193,443.39/x
  3. Step 3: Cross multiply
    459,828.90x = 689,040.68 × 193,443.39
  4. Step 4: Simplify right side
    459,828.90x = 133,290,364,019.89
  5. Step 5: Solve for x
    x = 133,290,364,019.89/459,828.90
  6. Step 6: Final answer
    x = 289,869.48

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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.