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Finding the Fourth Proportional to 703,866.68, 971,330.26 and 381,568.50

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Solution

The fourth proportional to 703,866.68, 971,330.26 and 381,568.50 is: 526,561.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,866.68 : 971,330.26 = 381,568.50 : x
  2. Step 2: Convert to fraction form
    703,866.68/971,330.26 = 381,568.50/x
  3. Step 3: Cross multiply
    703,866.68x = 971,330.26 × 381,568.50
  4. Step 4: Simplify right side
    703,866.68x = 370,629,030,312.81
  5. Step 5: Solve for x
    x = 370,629,030,312.81/703,866.68
  6. Step 6: Final answer
    x = 526,561.41

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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.