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Finding the Fourth Proportional to 543,636.40, 816,329.40 and 366,926.80

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Solution

The fourth proportional to 543,636.40, 816,329.40 and 366,926.80 is: 550,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,636.40 : 816,329.40 = 366,926.80 : x
  2. Step 2: Convert to fraction form
    543,636.40/816,329.40 = 366,926.80/x
  3. Step 3: Cross multiply
    543,636.40x = 816,329.40 × 366,926.80
  4. Step 4: Simplify right side
    543,636.40x = 299,533,134,487.92
  5. Step 5: Solve for x
    x = 299,533,134,487.92/543,636.40
  6. Step 6: Final answer
    x = 550,980.65

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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.