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Finding the Fourth Proportional to 484,820.88, 668,823.12 and 314,993.04

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Solution

The fourth proportional to 484,820.88, 668,823.12 and 314,993.04 is: 434,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,820.88 : 668,823.12 = 314,993.04 : x
  2. Step 2: Convert to fraction form
    484,820.88/668,823.12 = 314,993.04/x
  3. Step 3: Cross multiply
    484,820.88x = 668,823.12 × 314,993.04
  4. Step 4: Simplify right side
    484,820.88x = 210,674,627,791.09
  5. Step 5: Solve for x
    x = 210,674,627,791.09/484,820.88
  6. Step 6: Final answer
    x = 434,541.16

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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.