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Finding the Fourth Proportional to 435,485.51, 600,979.50 and 239,254.52

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Solution

The fourth proportional to 435,485.51, 600,979.50 and 239,254.52 is: 330,176.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,485.51 : 600,979.50 = 239,254.52 : x
  2. Step 2: Convert to fraction form
    435,485.51/600,979.50 = 239,254.52/x
  3. Step 3: Cross multiply
    435,485.51x = 600,979.50 × 239,254.52
  4. Step 4: Simplify right side
    435,485.51x = 143,787,058,797.44
  5. Step 5: Solve for x
    x = 143,787,058,797.44/435,485.51
  6. Step 6: Final answer
    x = 330,176.45

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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.