Home / 828,438.96-1,241,870.40-528,076.20

Finding the Fourth Proportional to 828,438.96, 1,241,870.40 and 528,076.20

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Solution

The fourth proportional to 828,438.96, 1,241,870.40 and 528,076.20 is: 791,611.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,438.96 : 1,241,870.40 = 528,076.20 : x
  2. Step 2: Convert to fraction form
    828,438.96/1,241,870.40 = 528,076.20/x
  3. Step 3: Cross multiply
    828,438.96x = 1,241,870.40 × 528,076.20
  4. Step 4: Simplify right side
    828,438.96x = 655,802,201,724.48
  5. Step 5: Solve for x
    x = 655,802,201,724.48/828,438.96
  6. Step 6: Final answer
    x = 791,611.98

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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.