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Finding the Fourth Proportional to 492,710.80, 739,066.20 and 374,612.80

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Solution

The fourth proportional to 492,710.80, 739,066.20 and 374,612.80 is: 561,919.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,710.80 : 739,066.20 = 374,612.80 : x
  2. Step 2: Convert to fraction form
    492,710.80/739,066.20 = 374,612.80/x
  3. Step 3: Cross multiply
    492,710.80x = 739,066.20 × 374,612.80
  4. Step 4: Simplify right side
    492,710.80x = 276,863,658,567.36
  5. Step 5: Solve for x
    x = 276,863,658,567.36/492,710.80
  6. Step 6: Final answer
    x = 561,919.20

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Similar ratio
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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.