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Finding the Fourth Proportional to 703,692.48, 971,185.56 and 393,612.29

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Solution

The fourth proportional to 703,692.48, 971,185.56 and 393,612.29 is: 543,235.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,692.48 : 971,185.56 = 393,612.29 : x
  2. Step 2: Convert to fraction form
    703,692.48/971,185.56 = 393,612.29/x
  3. Step 3: Cross multiply
    703,692.48x = 971,185.56 × 393,612.29
  4. Step 4: Simplify right side
    703,692.48x = 382,270,575,059.42
  5. Step 5: Solve for x
    x = 382,270,575,059.42/703,692.48
  6. Step 6: Final answer
    x = 543,235.27

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Double scale
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Similar ratio
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1.5x scale

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.