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Finding the Fourth Proportional to 508,440.24, 701,638.20 and 282,080.88

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Solution

The fourth proportional to 508,440.24, 701,638.20 and 282,080.88 is: 389,266.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,440.24 : 701,638.20 = 282,080.88 : x
  2. Step 2: Convert to fraction form
    508,440.24/701,638.20 = 282,080.88/x
  3. Step 3: Cross multiply
    508,440.24x = 701,638.20 × 282,080.88
  4. Step 4: Simplify right side
    508,440.24x = 197,918,720,897.62
  5. Step 5: Solve for x
    x = 197,918,720,897.62/508,440.24
  6. Step 6: Final answer
    x = 389,266.44

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Half scale
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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.