Home / 317,453.04-438,104.88-209,836.44

Finding the Fourth Proportional to 317,453.04, 438,104.88 and 209,836.44

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Solution

The fourth proportional to 317,453.04, 438,104.88 and 209,836.44 is: 289,587.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,453.04 : 438,104.88 = 209,836.44 : x
  2. Step 2: Convert to fraction form
    317,453.04/438,104.88 = 209,836.44/x
  3. Step 3: Cross multiply
    317,453.04x = 438,104.88 × 209,836.44
  4. Step 4: Simplify right side
    317,453.04x = 91,930,368,365.83
  5. Step 5: Solve for x
    x = 91,930,368,365.83/317,453.04
  6. Step 6: Final answer
    x = 289,587.30

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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.