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Finding the Fourth Proportional to 702,940.70, 1,054,411.05 and 323,860.70

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Solution

The fourth proportional to 702,940.70, 1,054,411.05 and 323,860.70 is: 485,791.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,940.70 : 1,054,411.05 = 323,860.70 : x
  2. Step 2: Convert to fraction form
    702,940.70/1,054,411.05 = 323,860.70/x
  3. Step 3: Cross multiply
    702,940.70x = 1,054,411.05 × 323,860.70
  4. Step 4: Simplify right side
    702,940.70x = 341,482,300,740.74
  5. Step 5: Solve for x
    x = 341,482,300,740.74/702,940.70
  6. Step 6: Final answer
    x = 485,791.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.