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Finding the Fourth Proportional to 702,034.40, 1,053,051.60 and 347,740.40

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Solution

The fourth proportional to 702,034.40, 1,053,051.60 and 347,740.40 is: 521,610.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,034.40 : 1,053,051.60 = 347,740.40 : x
  2. Step 2: Convert to fraction form
    702,034.40/1,053,051.60 = 347,740.40/x
  3. Step 3: Cross multiply
    702,034.40x = 1,053,051.60 × 347,740.40
  4. Step 4: Simplify right side
    702,034.40x = 366,188,584,604.64
  5. Step 5: Solve for x
    x = 366,188,584,604.64/702,034.40
  6. Step 6: Final answer
    x = 521,610.60

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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.