Home / 383,156.47-528,733.60-281,608.39

Finding the Fourth Proportional to 383,156.47, 528,733.60 and 281,608.39

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Solution

The fourth proportional to 383,156.47, 528,733.60 and 281,608.39 is: 388,603.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,156.47 : 528,733.60 = 281,608.39 : x
  2. Step 2: Convert to fraction form
    383,156.47/528,733.60 = 281,608.39/x
  3. Step 3: Cross multiply
    383,156.47x = 528,733.60 × 281,608.39
  4. Step 4: Simplify right side
    383,156.47x = 148,895,817,834.90
  5. Step 5: Solve for x
    x = 148,895,817,834.90/383,156.47
  6. Step 6: Final answer
    x = 388,603.17

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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.