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Finding the Fourth Proportional to 763,669, 1,053,863.22 and 424,168.84

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Solution

The fourth proportional to 763,669, 1,053,863.22 and 424,168.84 is: 585,353.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,669 : 1,053,863.22 = 424,168.84 : x
  2. Step 2: Convert to fraction form
    763,669/1,053,863.22 = 424,168.84/x
  3. Step 3: Cross multiply
    763,669x = 1,053,863.22 × 424,168.84
  4. Step 4: Simplify right side
    763,669x = 447,015,939,546.07
  5. Step 5: Solve for x
    x = 447,015,939,546.07/763,669
  6. Step 6: Final answer
    x = 585,353.00

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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.