Home / 521,520,768,086.35-782,281,152,129.54-521,520,768,086.35

Finding the Fourth Proportional to 521,520,768,086.35, 782,281,152,129.54 and 521,520,768,086.35

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Solution

The fourth proportional to 521,520,768,086.35, 782,281,152,129.54 and 521,520,768,086.35 is: 782,281,152,129.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,768,086.35 : 782,281,152,129.54 = 521,520,768,086.35 : x
  2. Step 2: Convert to fraction form
    521,520,768,086.35/782,281,152,129.54 = 521,520,768,086.35/x
  3. Step 3: Cross multiply
    521,520,768,086.35x = 782,281,152,129.54 × 521,520,768,086.35
  4. Step 4: Simplify right side
    521,520,768,086.35x = 407,975,867,318,072,485,347,328
  5. Step 5: Solve for x
    x = 407,975,867,318,072,485,347,328/521,520,768,086.35
  6. Step 6: Final answer
    x = 782,281,152,129.54

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Double scale
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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.