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Finding the Fourth Proportional to 702,940.01, 970,055.50 and 380,650.13

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Solution

The fourth proportional to 702,940.01, 970,055.50 and 380,650.13 is: 525,296.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,940.01 : 970,055.50 = 380,650.13 : x
  2. Step 2: Convert to fraction form
    702,940.01/970,055.50 = 380,650.13/x
  3. Step 3: Cross multiply
    702,940.01x = 970,055.50 × 380,650.13
  4. Step 4: Simplify right side
    702,940.01x = 369,251,752,182.22
  5. Step 5: Solve for x
    x = 369,251,752,182.22/702,940.01
  6. Step 6: Final answer
    x = 525,296.25

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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.