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Finding the Fourth Proportional to 569,689.20, 853,999.20 and 214,941.60

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Solution

The fourth proportional to 569,689.20, 853,999.20 and 214,941.60 is: 322,210.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,689.20 : 853,999.20 = 214,941.60 : x
  2. Step 2: Convert to fraction form
    569,689.20/853,999.20 = 214,941.60/x
  3. Step 3: Cross multiply
    569,689.20x = 853,999.20 × 214,941.60
  4. Step 4: Simplify right side
    569,689.20x = 183,559,954,446.72
  5. Step 5: Solve for x
    x = 183,559,954,446.72/569,689.20
  6. Step 6: Final answer
    x = 322,210.70

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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.