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Finding the Fourth Proportional to 507,673.86, 700,588.46 and 281,319.36

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Solution

The fourth proportional to 507,673.86, 700,588.46 and 281,319.36 is: 388,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,673.86 : 700,588.46 = 281,319.36 : x
  2. Step 2: Convert to fraction form
    507,673.86/700,588.46 = 281,319.36/x
  3. Step 3: Cross multiply
    507,673.86x = 700,588.46 × 281,319.36
  4. Step 4: Simplify right side
    507,673.86x = 197,089,097,190.59
  5. Step 5: Solve for x
    x = 197,089,097,190.59/507,673.86
  6. Step 6: Final answer
    x = 388,219.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.