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Finding the Fourth Proportional to 592,987.80, 818,323.65 and 321,055.88

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Solution

The fourth proportional to 592,987.80, 818,323.65 and 321,055.88 is: 443,057.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,987.80 : 818,323.65 = 321,055.88 : x
  2. Step 2: Convert to fraction form
    592,987.80/818,323.65 = 321,055.88/x
  3. Step 3: Cross multiply
    592,987.80x = 818,323.65 × 321,055.88
  4. Step 4: Simplify right side
    592,987.80x = 262,727,617,970.28
  5. Step 5: Solve for x
    x = 262,727,617,970.28/592,987.80
  6. Step 6: Final answer
    x = 443,057.37

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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.