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Finding the Fourth Proportional to 530,374.80, 795,610.80 and 214,766.40

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Solution

The fourth proportional to 530,374.80, 795,610.80 and 214,766.40 is: 322,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,374.80 : 795,610.80 = 214,766.40 : x
  2. Step 2: Convert to fraction form
    530,374.80/795,610.80 = 214,766.40/x
  3. Step 3: Cross multiply
    530,374.80x = 795,610.80 × 214,766.40
  4. Step 4: Simplify right side
    530,374.80x = 170,870,467,317.12
  5. Step 5: Solve for x
    x = 170,870,467,317.12/530,374.80
  6. Step 6: Final answer
    x = 322,169.28

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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.