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Finding the Fourth Proportional to 530,430.60, 795,645.90 and 521,682.60

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Solution

The fourth proportional to 530,430.60, 795,645.90 and 521,682.60 is: 782,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,430.60 : 795,645.90 = 521,682.60 : x
  2. Step 2: Convert to fraction form
    530,430.60/795,645.90 = 521,682.60/x
  3. Step 3: Cross multiply
    530,430.60x = 795,645.90 × 521,682.60
  4. Step 4: Simplify right side
    530,430.60x = 415,074,621,791.34
  5. Step 5: Solve for x
    x = 415,074,621,791.34/530,430.60
  6. Step 6: Final answer
    x = 782,523.90

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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.