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Finding the Fourth Proportional to 692,634.75, 955,995.08 and 406,247.10

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Solution

The fourth proportional to 692,634.75, 955,995.08 and 406,247.10 is: 560,714.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,634.75 : 955,995.08 = 406,247.10 : x
  2. Step 2: Convert to fraction form
    692,634.75/955,995.08 = 406,247.10/x
  3. Step 3: Cross multiply
    692,634.75x = 955,995.08 × 406,247.10
  4. Step 4: Simplify right side
    692,634.75x = 388,370,226,833.03
  5. Step 5: Solve for x
    x = 388,370,226,833.03/692,634.75
  6. Step 6: Final answer
    x = 560,714.33

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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.