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Finding the Fourth Proportional to 543,800.86, 815,784.20 and 277,416.06

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Solution

The fourth proportional to 543,800.86, 815,784.20 and 277,416.06 is: 416,166.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,800.86 : 815,784.20 = 277,416.06 : x
  2. Step 2: Convert to fraction form
    543,800.86/815,784.20 = 277,416.06/x
  3. Step 3: Cross multiply
    543,800.86x = 815,784.20 × 277,416.06
  4. Step 4: Simplify right side
    543,800.86x = 226,311,638,574.25
  5. Step 5: Solve for x
    x = 226,311,638,574.25/543,800.86
  6. Step 6: Final answer
    x = 416,166.39

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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.