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Finding the Fourth Proportional to 703,307.61, 970,563.33 and 381,025.89

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Solution

The fourth proportional to 703,307.61, 970,563.33 and 381,025.89 is: 525,815.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,307.61 : 970,563.33 = 381,025.89 : x
  2. Step 2: Convert to fraction form
    703,307.61/970,563.33 = 381,025.89/x
  3. Step 3: Cross multiply
    703,307.61x = 970,563.33 × 381,025.89
  4. Step 4: Simplify right side
    703,307.61x = 369,809,756,614.61
  5. Step 5: Solve for x
    x = 369,809,756,614.61/703,307.61
  6. Step 6: Final answer
    x = 525,815.09

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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.