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Finding the Fourth Proportional to 529,846.20, 794,769.30 and 319,894.20

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Solution

The fourth proportional to 529,846.20, 794,769.30 and 319,894.20 is: 479,841.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,846.20 : 794,769.30 = 319,894.20 : x
  2. Step 2: Convert to fraction form
    529,846.20/794,769.30 = 319,894.20/x
  3. Step 3: Cross multiply
    529,846.20x = 794,769.30 × 319,894.20
  4. Step 4: Simplify right side
    529,846.20x = 254,242,089,408.06
  5. Step 5: Solve for x
    x = 254,242,089,408.06/529,846.20
  6. Step 6: Final answer
    x = 479,841.30

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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.