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Finding the Fourth Proportional to 575,339.08, 793,994.82 and 320,692.12

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Solution

The fourth proportional to 575,339.08, 793,994.82 and 320,692.12 is: 442,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,339.08 : 793,994.82 = 320,692.12 : x
  2. Step 2: Convert to fraction form
    575,339.08/793,994.82 = 320,692.12/x
  3. Step 3: Cross multiply
    575,339.08x = 793,994.82 × 320,692.12
  4. Step 4: Simplify right side
    575,339.08x = 254,627,882,094.82
  5. Step 5: Solve for x
    x = 254,627,882,094.82/575,339.08
  6. Step 6: Final answer
    x = 442,570.11

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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.