Home / 385,727.59-532,300.57-215,964.55

Finding the Fourth Proportional to 385,727.59, 532,300.57 and 215,964.55

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Solution

The fourth proportional to 385,727.59, 532,300.57 and 215,964.55 is: 298,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,727.59 : 532,300.57 = 215,964.55 : x
  2. Step 2: Convert to fraction form
    385,727.59/532,300.57 = 215,964.55/x
  3. Step 3: Cross multiply
    385,727.59x = 532,300.57 × 215,964.55
  4. Step 4: Simplify right side
    385,727.59x = 114,958,053,064.79
  5. Step 5: Solve for x
    x = 114,958,053,064.79/385,727.59
  6. Step 6: Final answer
    x = 298,029.12

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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.