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Finding the Fourth Proportional to 590,673.25, 815,129.09 and 322,401.25

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Solution

The fourth proportional to 590,673.25, 815,129.09 and 322,401.25 is: 444,913.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,673.25 : 815,129.09 = 322,401.25 : x
  2. Step 2: Convert to fraction form
    590,673.25/815,129.09 = 322,401.25/x
  3. Step 3: Cross multiply
    590,673.25x = 815,129.09 × 322,401.25
  4. Step 4: Simplify right side
    590,673.25x = 262,798,637,527.36
  5. Step 5: Solve for x
    x = 262,798,637,527.36/590,673.25
  6. Step 6: Final answer
    x = 444,913.73

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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.