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Finding the Fourth Proportional to 446,640.40, 616,356.76 and 245,432.08

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Solution

The fourth proportional to 446,640.40, 616,356.76 and 245,432.08 is: 338,692.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,640.40 : 616,356.76 = 245,432.08 : x
  2. Step 2: Convert to fraction form
    446,640.40/616,356.76 = 245,432.08/x
  3. Step 3: Cross multiply
    446,640.40x = 616,356.76 × 245,432.08
  4. Step 4: Simplify right side
    446,640.40x = 151,273,721,628.86
  5. Step 5: Solve for x
    x = 151,273,721,628.86/446,640.40
  6. Step 6: Final answer
    x = 338,692.43

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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.