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Finding the Fourth Proportional to 443,328.80, 664,009.04 and 364,596.80

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Solution

The fourth proportional to 443,328.80, 664,009.04 and 364,596.80 is: 546,085.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,328.80 : 664,009.04 = 364,596.80 : x
  2. Step 2: Convert to fraction form
    443,328.80/664,009.04 = 364,596.80/x
  3. Step 3: Cross multiply
    443,328.80x = 664,009.04 × 364,596.80
  4. Step 4: Simplify right side
    443,328.80x = 242,095,571,155.07
  5. Step 5: Solve for x
    x = 242,095,571,155.07/443,328.80
  6. Step 6: Final answer
    x = 546,085.82

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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.