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Finding the Fourth Proportional to 525,553.40, 788,330.10 and 193,086.20

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Solution

The fourth proportional to 525,553.40, 788,330.10 and 193,086.20 is: 289,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,553.40 : 788,330.10 = 193,086.20 : x
  2. Step 2: Convert to fraction form
    525,553.40/788,330.10 = 193,086.20/x
  3. Step 3: Cross multiply
    525,553.40x = 788,330.10 × 193,086.20
  4. Step 4: Simplify right side
    525,553.40x = 152,215,663,354.62
  5. Step 5: Solve for x
    x = 152,215,663,354.62/525,553.40
  6. Step 6: Final answer
    x = 289,629.30

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.