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Finding the Fourth Proportional to 318,600.47, 439,668.76 and 175,359.49

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Solution

The fourth proportional to 318,600.47, 439,668.76 and 175,359.49 is: 241,996.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,600.47 : 439,668.76 = 175,359.49 : x
  2. Step 2: Convert to fraction form
    318,600.47/439,668.76 = 175,359.49/x
  3. Step 3: Cross multiply
    318,600.47x = 439,668.76 × 175,359.49
  4. Step 4: Simplify right side
    318,600.47x = 77,100,089,522.53
  5. Step 5: Solve for x
    x = 77,100,089,522.53/318,600.47
  6. Step 6: Final answer
    x = 241,996.16

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1.5x scale

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.