Home / 674,266.17-930,515.70-387,786.58

Finding the Fourth Proportional to 674,266.17, 930,515.70 and 387,786.58

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Solution

The fourth proportional to 674,266.17, 930,515.70 and 387,786.58 is: 535,161.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,266.17 : 930,515.70 = 387,786.58 : x
  2. Step 2: Convert to fraction form
    674,266.17/930,515.70 = 387,786.58/x
  3. Step 3: Cross multiply
    674,266.17x = 930,515.70 × 387,786.58
  4. Step 4: Simplify right side
    674,266.17x = 360,841,500,939.31
  5. Step 5: Solve for x
    x = 360,841,500,939.31/674,266.17
  6. Step 6: Final answer
    x = 535,161.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.