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Finding the Fourth Proportional to 622,744.93, 930,705.29 and 454,619.29

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Solution

The fourth proportional to 622,744.93, 930,705.29 and 454,619.29 is: 679,438.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,744.93 : 930,705.29 = 454,619.29 : x
  2. Step 2: Convert to fraction form
    622,744.93/930,705.29 = 454,619.29/x
  3. Step 3: Cross multiply
    622,744.93x = 930,705.29 × 454,619.29
  4. Step 4: Simplify right side
    622,744.93x = 423,116,578,139.04
  5. Step 5: Solve for x
    x = 423,116,578,139.04/622,744.93
  6. Step 6: Final answer
    x = 679,438.01

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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.