Home / 388,824.20-581,681.10-336,811.40

Finding the Fourth Proportional to 388,824.20, 581,681.10 and 336,811.40

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Solution

The fourth proportional to 388,824.20, 581,681.10 and 336,811.40 is: 503,869.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,824.20 : 581,681.10 = 336,811.40 : x
  2. Step 2: Convert to fraction form
    388,824.20/581,681.10 = 336,811.40/x
  3. Step 3: Cross multiply
    388,824.20x = 581,681.10 × 336,811.40
  4. Step 4: Simplify right side
    388,824.20x = 195,916,825,644.54
  5. Step 5: Solve for x
    x = 195,916,825,644.54/388,824.20
  6. Step 6: Final answer
    x = 503,869.94

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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.