Home / 638,723.04-957,820.96-218,032.80

Finding the Fourth Proportional to 638,723.04, 957,820.96 and 218,032.80

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Solution

The fourth proportional to 638,723.04, 957,820.96 and 218,032.80 is: 326,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,723.04 : 957,820.96 = 218,032.80 : x
  2. Step 2: Convert to fraction form
    638,723.04/957,820.96 = 218,032.80/x
  3. Step 3: Cross multiply
    638,723.04x = 957,820.96 × 218,032.80
  4. Step 4: Simplify right side
    638,723.04x = 208,836,385,807.49
  5. Step 5: Solve for x
    x = 208,836,385,807.49/638,723.04
  6. Step 6: Final answer
    x = 326,959.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.