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Finding the Fourth Proportional to 768,705.44, 1,060,791.40 and 429,166.40

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Solution

The fourth proportional to 768,705.44, 1,060,791.40 and 429,166.40 is: 592,237.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,705.44 : 1,060,791.40 = 429,166.40 : x
  2. Step 2: Convert to fraction form
    768,705.44/1,060,791.40 = 429,166.40/x
  3. Step 3: Cross multiply
    768,705.44x = 1,060,791.40 × 429,166.40
  4. Step 4: Simplify right side
    768,705.44x = 455,256,026,288.96
  5. Step 5: Solve for x
    x = 455,256,026,288.96/768,705.44
  6. Step 6: Final answer
    x = 592,237.29

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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.