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Finding the Fourth Proportional to 440,511.60, 660,940.20 and 160,057.20

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Solution

The fourth proportional to 440,511.60, 660,940.20 and 160,057.20 is: 240,148.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,511.60 : 660,940.20 = 160,057.20 : x
  2. Step 2: Convert to fraction form
    440,511.60/660,940.20 = 160,057.20/x
  3. Step 3: Cross multiply
    440,511.60x = 660,940.20 × 160,057.20
  4. Step 4: Simplify right side
    440,511.60x = 105,788,237,779.44
  5. Step 5: Solve for x
    x = 105,788,237,779.44/440,511.60
  6. Step 6: Final answer
    x = 240,148.59

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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.