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Finding the Fourth Proportional to 592,987.55, 818,323.30 and 321,055.63

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Solution

The fourth proportional to 592,987.55, 818,323.30 and 321,055.63 is: 443,057.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,987.55 : 818,323.30 = 321,055.63 : x
  2. Step 2: Convert to fraction form
    592,987.55/818,323.30 = 321,055.63/x
  3. Step 3: Cross multiply
    592,987.55x = 818,323.30 × 321,055.63
  4. Step 4: Simplify right side
    592,987.55x = 262,727,301,822.54
  5. Step 5: Solve for x
    x = 262,727,301,822.54/592,987.55
  6. Step 6: Final answer
    x = 443,057.03

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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.