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Finding the Fourth Proportional to 586,359.22, 809,177.26 and 318,087.22

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Solution

The fourth proportional to 586,359.22, 809,177.26 and 318,087.22 is: 438,961.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,359.22 : 809,177.26 = 318,087.22 : x
  2. Step 2: Convert to fraction form
    586,359.22/809,177.26 = 318,087.22/x
  3. Step 3: Cross multiply
    586,359.22x = 809,177.26 × 318,087.22
  4. Step 4: Simplify right side
    586,359.22x = 257,388,945,120.62
  5. Step 5: Solve for x
    x = 257,388,945,120.62/586,359.22
  6. Step 6: Final answer
    x = 438,961.20

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1.5x scale

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.