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Finding the Fourth Proportional to 641,579.40, 961,202.70 and 522,606.60

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Solution

The fourth proportional to 641,579.40, 961,202.70 and 522,606.60 is: 782,959.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,579.40 : 961,202.70 = 522,606.60 : x
  2. Step 2: Convert to fraction form
    641,579.40/961,202.70 = 522,606.60/x
  3. Step 3: Cross multiply
    641,579.40x = 961,202.70 × 522,606.60
  4. Step 4: Simplify right side
    641,579.40x = 502,330,874,957.82
  5. Step 5: Solve for x
    x = 502,330,874,957.82/641,579.40
  6. Step 6: Final answer
    x = 782,959.79

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1.5x scale

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.