Home / 543,733.20-815,599.80-188,783.10

Finding the Fourth Proportional to 543,733.20, 815,599.80 and 188,783.10

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Solution

The fourth proportional to 543,733.20, 815,599.80 and 188,783.10 is: 283,174.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,733.20 : 815,599.80 = 188,783.10 : x
  2. Step 2: Convert to fraction form
    543,733.20/815,599.80 = 188,783.10/x
  3. Step 3: Cross multiply
    543,733.20x = 815,599.80 × 188,783.10
  4. Step 4: Simplify right side
    543,733.20x = 153,971,458,603.38
  5. Step 5: Solve for x
    x = 153,971,458,603.38/543,733.20
  6. Step 6: Final answer
    x = 283,174.65

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Double scale
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Similar ratio
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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.