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Finding the Fourth Proportional to 318,598.44, 439,662.40 and 175,355.38

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Solution

The fourth proportional to 318,598.44, 439,662.40 and 175,355.38 is: 241,988.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,598.44 : 439,662.40 = 175,355.38 : x
  2. Step 2: Convert to fraction form
    318,598.44/439,662.40 = 175,355.38/x
  3. Step 3: Cross multiply
    318,598.44x = 439,662.40 × 175,355.38
  4. Step 4: Simplify right side
    318,598.44x = 77,097,167,223.71
  5. Step 5: Solve for x
    x = 77,097,167,223.71/318,598.44
  6. Step 6: Final answer
    x = 241,988.53

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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.