Home / 648,494.02-894,936.90-406,786.78

Finding the Fourth Proportional to 648,494.02, 894,936.90 and 406,786.78

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Solution

The fourth proportional to 648,494.02, 894,936.90 and 406,786.78 is: 561,375.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,494.02 : 894,936.90 = 406,786.78 : x
  2. Step 2: Convert to fraction form
    648,494.02/894,936.90 = 406,786.78/x
  3. Step 3: Cross multiply
    648,494.02x = 894,936.90 × 406,786.78
  4. Step 4: Simplify right side
    648,494.02x = 364,048,499,854.18
  5. Step 5: Solve for x
    x = 364,048,499,854.18/648,494.02
  6. Step 6: Final answer
    x = 561,375.26

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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.