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Finding the Fourth Proportional to 307,570.76, 424,448.06 and 180,246.25

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Solution

The fourth proportional to 307,570.76, 424,448.06 and 180,246.25 is: 248,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,570.76 : 424,448.06 = 180,246.25 : x
  2. Step 2: Convert to fraction form
    307,570.76/424,448.06 = 180,246.25/x
  3. Step 3: Cross multiply
    307,570.76x = 424,448.06 × 180,246.25
  4. Step 4: Simplify right side
    307,570.76x = 76,505,171,134.78
  5. Step 5: Solve for x
    x = 76,505,171,134.78/307,570.76
  6. Step 6: Final answer
    x = 248,740.07

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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.