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Finding the Fourth Proportional to 317,406.02, 438,019.08 and 174,168.45

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Solution

The fourth proportional to 317,406.02, 438,019.08 and 174,168.45 is: 240,351.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,406.02 : 438,019.08 = 174,168.45 : x
  2. Step 2: Convert to fraction form
    317,406.02/438,019.08 = 174,168.45/x
  3. Step 3: Cross multiply
    317,406.02x = 438,019.08 × 174,168.45
  4. Step 4: Simplify right side
    317,406.02x = 76,289,104,234.03
  5. Step 5: Solve for x
    x = 76,289,104,234.03/317,406.02
  6. Step 6: Final answer
    x = 240,351.79

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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.