Home / 648,101.39-894,130.47-405,962.42

Finding the Fourth Proportional to 648,101.39, 894,130.47 and 405,962.42

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Solution

The fourth proportional to 648,101.39, 894,130.47 and 405,962.42 is: 560,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,101.39 : 894,130.47 = 405,962.42 : x
  2. Step 2: Convert to fraction form
    648,101.39/894,130.47 = 405,962.42/x
  3. Step 3: Cross multiply
    648,101.39x = 894,130.47 × 405,962.42
  4. Step 4: Simplify right side
    648,101.39x = 362,983,362,896.47
  5. Step 5: Solve for x
    x = 362,983,362,896.47/648,101.39
  6. Step 6: Final answer
    x = 560,071.88

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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.