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Finding the Fourth Proportional to 622,776.95, 930,753.26 and 454,651.33

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Solution

The fourth proportional to 622,776.95, 930,753.26 and 454,651.33 is: 679,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,776.95 : 930,753.26 = 454,651.33 : x
  2. Step 2: Convert to fraction form
    622,776.95/930,753.26 = 454,651.33/x
  3. Step 3: Cross multiply
    622,776.95x = 930,753.26 × 454,651.33
  4. Step 4: Simplify right side
    622,776.95x = 423,168,205,132.09
  5. Step 5: Solve for x
    x = 423,168,205,132.09/622,776.95
  6. Step 6: Final answer
    x = 679,485.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.