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Finding the Fourth Proportional to 575,369.05, 793,992.76 and 320,714.77

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Solution

The fourth proportional to 575,369.05, 793,992.76 and 320,714.77 is: 442,577.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,369.05 : 793,992.76 = 320,714.77 : x
  2. Step 2: Convert to fraction form
    575,369.05/793,992.76 = 320,714.77/x
  3. Step 3: Cross multiply
    575,369.05x = 793,992.76 × 320,714.77
  4. Step 4: Simplify right side
    575,369.05x = 254,645,205,405.07
  5. Step 5: Solve for x
    x = 254,645,205,405.07/575,369.05
  6. Step 6: Final answer
    x = 442,577.17

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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.