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Finding the Fourth Proportional to 622,812.25, 859,480.91 and 336,332.34

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Solution

The fourth proportional to 622,812.25, 859,480.91 and 336,332.34 is: 464,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,812.25 : 859,480.91 = 336,332.34 : x
  2. Step 2: Convert to fraction form
    622,812.25/859,480.91 = 336,332.34/x
  3. Step 3: Cross multiply
    622,812.25x = 859,480.91 × 336,332.34
  4. Step 4: Simplify right side
    622,812.25x = 289,071,225,645.63
  5. Step 5: Solve for x
    x = 289,071,225,645.63/622,812.25
  6. Step 6: Final answer
    x = 464,138.63

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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.