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Finding the Fourth Proportional to 575,365.76, 862,449.86 and 322,275.20

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Solution

The fourth proportional to 575,365.76, 862,449.86 and 322,275.20 is: 483,077.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,365.76 : 862,449.86 = 322,275.20 : x
  2. Step 2: Convert to fraction form
    575,365.76/862,449.86 = 322,275.20/x
  3. Step 3: Cross multiply
    575,365.76x = 862,449.86 × 322,275.20
  4. Step 4: Simplify right side
    575,365.76x = 277,946,201,121.47
  5. Step 5: Solve for x
    x = 277,946,201,121.47/575,365.76
  6. Step 6: Final answer
    x = 483,077.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.