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Finding the Fourth Proportional to 580,630,269.60, 869,751,010.80 and 399,082,442.40

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Solution

The fourth proportional to 580,630,269.60, 869,751,010.80 and 399,082,442.40 is: 597,802,725.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,630,269.60 : 869,751,010.80 = 399,082,442.40 : x
  2. Step 2: Convert to fraction form
    580,630,269.60/869,751,010.80 = 399,082,442.40/x
  3. Step 3: Cross multiply
    580,630,269.60x = 869,751,010.80 × 399,082,442.40
  4. Step 4: Simplify right side
    580,630,269.60x = 347,102,357,669,932,736
  5. Step 5: Solve for x
    x = 347,102,357,669,932,736/580,630,269.60
  6. Step 6: Final answer
    x = 597,802,725.49

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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.