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Finding the Fourth Proportional to 571,746.80, 789,059.04 and 317,180

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Solution

The fourth proportional to 571,746.80, 789,059.04 and 317,180 is: 437,735.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,746.80 : 789,059.04 = 317,180 : x
  2. Step 2: Convert to fraction form
    571,746.80/789,059.04 = 317,180/x
  3. Step 3: Cross multiply
    571,746.80x = 789,059.04 × 317,180
  4. Step 4: Simplify right side
    571,746.80x = 250,273,746,307.20
  5. Step 5: Solve for x
    x = 250,273,746,307.20/571,746.80
  6. Step 6: Final answer
    x = 437,735.28

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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.