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Finding the Fourth Proportional to 318,696.48, 439,797.60 and 175,453.56

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Solution

The fourth proportional to 318,696.48, 439,797.60 and 175,453.56 is: 242,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,696.48 : 439,797.60 = 175,453.56 : x
  2. Step 2: Convert to fraction form
    318,696.48/439,797.60 = 175,453.56/x
  3. Step 3: Cross multiply
    318,696.48x = 439,797.60 × 175,453.56
  4. Step 4: Simplify right side
    318,696.48x = 77,164,054,599.46
  5. Step 5: Solve for x
    x = 77,164,054,599.46/318,696.48
  6. Step 6: Final answer
    x = 242,123.96

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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.