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Finding the Fourth Proportional to 750,692.88, 1,035,951.41 and 406,523.32

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Solution

The fourth proportional to 750,692.88, 1,035,951.41 and 406,523.32 is: 560,999.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    750,692.88 : 1,035,951.41 = 406,523.32 : x
  2. Step 2: Convert to fraction form
    750,692.88/1,035,951.41 = 406,523.32/x
  3. Step 3: Cross multiply
    750,692.88x = 1,035,951.41 × 406,523.32
  4. Step 4: Simplify right side
    750,692.88x = 421,138,406,551.88
  5. Step 5: Solve for x
    x = 421,138,406,551.88/750,692.88
  6. Step 6: Final answer
    x = 560,999.60

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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.