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Finding the Fourth Proportional to 543,336.90, 815,114.70 and 188,277.45

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Solution

The fourth proportional to 543,336.90, 815,114.70 and 188,277.45 is: 282,454.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,336.90 : 815,114.70 = 188,277.45 : x
  2. Step 2: Convert to fraction form
    543,336.90/815,114.70 = 188,277.45/x
  3. Step 3: Cross multiply
    543,336.90x = 815,114.70 × 188,277.45
  4. Step 4: Simplify right side
    543,336.90x = 153,467,717,173.52
  5. Step 5: Solve for x
    x = 153,467,717,173.52/543,336.90
  6. Step 6: Final answer
    x = 282,454.07

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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.