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Finding the Fourth Proportional to 443,035.25, 664,810.64 and 186,851.89

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Solution

The fourth proportional to 443,035.25, 664,810.64 and 186,851.89 is: 280,386.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,035.25 : 664,810.64 = 186,851.89 : x
  2. Step 2: Convert to fraction form
    443,035.25/664,810.64 = 186,851.89/x
  3. Step 3: Cross multiply
    443,035.25x = 664,810.64 × 186,851.89
  4. Step 4: Simplify right side
    443,035.25x = 124,221,123,303.78
  5. Step 5: Solve for x
    x = 124,221,123,303.78/443,035.25
  6. Step 6: Final answer
    x = 280,386.55

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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.