Home / 398,965.81-550,497.49-237,835.85

Finding the Fourth Proportional to 398,965.81, 550,497.49 and 237,835.85

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Solution

The fourth proportional to 398,965.81, 550,497.49 and 237,835.85 is: 328,168.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,965.81 : 550,497.49 = 237,835.85 : x
  2. Step 2: Convert to fraction form
    398,965.81/550,497.49 = 237,835.85/x
  3. Step 3: Cross multiply
    398,965.81x = 550,497.49 × 237,835.85
  4. Step 4: Simplify right side
    398,965.81x = 130,928,038,457.02
  5. Step 5: Solve for x
    x = 130,928,038,457.02/398,965.81
  6. Step 6: Final answer
    x = 328,168.57

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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.