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Finding the Fourth Proportional to 575,809.16, 794,633.69 and 321,154.88

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Solution

The fourth proportional to 575,809.16, 794,633.69 and 321,154.88 is: 443,203.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,809.16 : 794,633.69 = 321,154.88 : x
  2. Step 2: Convert to fraction form
    575,809.16/794,633.69 = 321,154.88/x
  3. Step 3: Cross multiply
    575,809.16x = 794,633.69 × 321,154.88
  4. Step 4: Simplify right side
    575,809.16x = 255,200,484,185.63
  5. Step 5: Solve for x
    x = 255,200,484,185.63/575,809.16
  6. Step 6: Final answer
    x = 443,203.24

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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.