Home / 450,328.41-621,371.05-256,727.88

Finding the Fourth Proportional to 450,328.41, 621,371.05 and 256,727.88

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Solution

The fourth proportional to 450,328.41, 621,371.05 and 256,727.88 is: 354,237.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,328.41 : 621,371.05 = 256,727.88 : x
  2. Step 2: Convert to fraction form
    450,328.41/621,371.05 = 256,727.88/x
  3. Step 3: Cross multiply
    450,328.41x = 621,371.05 × 256,727.88
  4. Step 4: Simplify right side
    450,328.41x = 159,523,271,718.05
  5. Step 5: Solve for x
    x = 159,523,271,718.05/450,328.41
  6. Step 6: Final answer
    x = 354,237.64

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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.