Home / 394,176.03-543,962.88-212,888.00

Finding the Fourth Proportional to 394,176.03, 543,962.88 and 212,888.00

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Solution

The fourth proportional to 394,176.03, 543,962.88 and 212,888.00 is: 293,785.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,176.03 : 543,962.88 = 212,888.00 : x
  2. Step 2: Convert to fraction form
    394,176.03/543,962.88 = 212,888.00/x
  3. Step 3: Cross multiply
    394,176.03x = 543,962.88 × 212,888.00
  4. Step 4: Simplify right side
    394,176.03x = 115,803,166,877.63
  5. Step 5: Solve for x
    x = 115,803,166,877.63/394,176.03
  6. Step 6: Final answer
    x = 293,785.41

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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.