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Finding the Fourth Proportional to 685,930.80, 946,269.36 and 444,294

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Solution

The fourth proportional to 685,930.80, 946,269.36 and 444,294 is: 612,921.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,930.80 : 946,269.36 = 444,294 : x
  2. Step 2: Convert to fraction form
    685,930.80/946,269.36 = 444,294/x
  3. Step 3: Cross multiply
    685,930.80x = 946,269.36 × 444,294
  4. Step 4: Simplify right side
    685,930.80x = 420,421,799,031.84
  5. Step 5: Solve for x
    x = 420,421,799,031.84/685,930.80
  6. Step 6: Final answer
    x = 612,921.59

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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.