Home / 392,011.04-540,959.28-230,872.80

Finding the Fourth Proportional to 392,011.04, 540,959.28 and 230,872.80

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Solution

The fourth proportional to 392,011.04, 540,959.28 and 230,872.80 is: 318,595.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,011.04 : 540,959.28 = 230,872.80 : x
  2. Step 2: Convert to fraction form
    392,011.04/540,959.28 = 230,872.80/x
  3. Step 3: Cross multiply
    392,011.04x = 540,959.28 × 230,872.80
  4. Step 4: Simplify right side
    392,011.04x = 124,892,783,659.58
  5. Step 5: Solve for x
    x = 124,892,783,659.58/392,011.04
  6. Step 6: Final answer
    x = 318,595.07

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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.