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Finding the Fourth Proportional to 487,450.73, 672,851.12 and 334,993.59

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Solution

The fourth proportional to 487,450.73, 672,851.12 and 334,993.59 is: 462,407.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,450.73 : 672,851.12 = 334,993.59 : x
  2. Step 2: Convert to fraction form
    487,450.73/672,851.12 = 334,993.59/x
  3. Step 3: Cross multiply
    487,450.73x = 672,851.12 × 334,993.59
  4. Step 4: Simplify right side
    487,450.73x = 225,400,812,224.32
  5. Step 5: Solve for x
    x = 225,400,812,224.32/487,450.73
  6. Step 6: Final answer
    x = 462,407.37

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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.