Home / 543,743.60-815,623.59-188,768.89

Finding the Fourth Proportional to 543,743.60, 815,623.59 and 188,768.89

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Solution

The fourth proportional to 543,743.60, 815,623.59 and 188,768.89 is: 283,156.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,743.60 : 815,623.59 = 188,768.89 : x
  2. Step 2: Convert to fraction form
    543,743.60/815,623.59 = 188,768.89/x
  3. Step 3: Cross multiply
    543,743.60x = 815,623.59 × 188,768.89
  4. Step 4: Simplify right side
    543,743.60x = 153,964,361,469.53
  5. Step 5: Solve for x
    x = 153,964,361,469.53/543,743.60
  6. Step 6: Final answer
    x = 283,156.18

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1.5x scale

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.