Home / 383,418.49-529,110.42-208,990.18

Finding the Fourth Proportional to 383,418.49, 529,110.42 and 208,990.18

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Solution

The fourth proportional to 383,418.49, 529,110.42 and 208,990.18 is: 288,402.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,418.49 : 529,110.42 = 208,990.18 : x
  2. Step 2: Convert to fraction form
    383,418.49/529,110.42 = 208,990.18/x
  3. Step 3: Cross multiply
    383,418.49x = 529,110.42 × 208,990.18
  4. Step 4: Simplify right side
    383,418.49x = 110,578,881,915.68
  5. Step 5: Solve for x
    x = 110,578,881,915.68/383,418.49
  6. Step 6: Final answer
    x = 288,402.58

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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.