Home / 641,821.53-962,933.72-385,948.61

Finding the Fourth Proportional to 641,821.53, 962,933.72 and 385,948.61

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Solution

The fourth proportional to 641,821.53, 962,933.72 and 385,948.61 is: 579,044.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,821.53 : 962,933.72 = 385,948.61 : x
  2. Step 2: Convert to fraction form
    641,821.53/962,933.72 = 385,948.61/x
  3. Step 3: Cross multiply
    641,821.53x = 962,933.72 × 385,948.61
  4. Step 4: Simplify right side
    641,821.53x = 371,642,924,011.72
  5. Step 5: Solve for x
    x = 371,642,924,011.72/641,821.53
  6. Step 6: Final answer
    x = 579,044.03

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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.