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Finding the Fourth Proportional to 530,427.60, 795,641.40 and 446,446.80

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Solution

The fourth proportional to 530,427.60, 795,641.40 and 446,446.80 is: 669,670.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,427.60 : 795,641.40 = 446,446.80 : x
  2. Step 2: Convert to fraction form
    530,427.60/795,641.40 = 446,446.80/x
  3. Step 3: Cross multiply
    530,427.60x = 795,641.40 × 446,446.80
  4. Step 4: Simplify right side
    530,427.60x = 355,211,556,977.52
  5. Step 5: Solve for x
    x = 355,211,556,977.52/530,427.60
  6. Step 6: Final answer
    x = 669,670.20

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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.