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Finding the Fourth Proportional to 407,730.80, 611,596.20 and 295,173.20

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Solution

The fourth proportional to 407,730.80, 611,596.20 and 295,173.20 is: 442,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,730.80 : 611,596.20 = 295,173.20 : x
  2. Step 2: Convert to fraction form
    407,730.80/611,596.20 = 295,173.20/x
  3. Step 3: Cross multiply
    407,730.80x = 611,596.20 × 295,173.20
  4. Step 4: Simplify right side
    407,730.80x = 180,526,807,461.84
  5. Step 5: Solve for x
    x = 180,526,807,461.84/407,730.80
  6. Step 6: Final answer
    x = 442,759.80

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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.