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Finding the Fourth Proportional to 575,979.30, 794,844.54 and 317,858.22

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Solution

The fourth proportional to 575,979.30, 794,844.54 and 317,858.22 is: 438,640.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,979.30 : 794,844.54 = 317,858.22 : x
  2. Step 2: Convert to fraction form
    575,979.30/794,844.54 = 317,858.22/x
  3. Step 3: Cross multiply
    575,979.30x = 794,844.54 × 317,858.22
  4. Step 4: Simplify right side
    575,979.30x = 252,647,870,661.12
  5. Step 5: Solve for x
    x = 252,647,870,661.12/575,979.30
  6. Step 6: Final answer
    x = 438,640.54

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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.