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Finding the Fourth Proportional to 317,464.99, 438,109.77 and 174,223.78

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Solution

The fourth proportional to 317,464.99, 438,109.77 and 174,223.78 is: 240,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,464.99 : 438,109.77 = 174,223.78 : x
  2. Step 2: Convert to fraction form
    317,464.99/438,109.77 = 174,223.78/x
  3. Step 3: Cross multiply
    317,464.99x = 438,109.77 × 174,223.78
  4. Step 4: Simplify right side
    317,464.99x = 76,329,140,184.33
  5. Step 5: Solve for x
    x = 76,329,140,184.33/317,464.99
  6. Step 6: Final answer
    x = 240,433.25

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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.