Home / 818,787.45-1,228,181.18-606,211.05

Finding the Fourth Proportional to 818,787.45, 1,228,181.18 and 606,211.05

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Solution

The fourth proportional to 818,787.45, 1,228,181.18 and 606,211.05 is: 909,316.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,787.45 : 1,228,181.18 = 606,211.05 : x
  2. Step 2: Convert to fraction form
    818,787.45/1,228,181.18 = 606,211.05/x
  3. Step 3: Cross multiply
    818,787.45x = 1,228,181.18 × 606,211.05
  4. Step 4: Simplify right side
    818,787.45x = 744,536,999,686.98
  5. Step 5: Solve for x
    x = 744,536,999,686.98/818,787.45
  6. Step 6: Final answer
    x = 909,316.58

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Double scale
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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.