Home / 864,090.40-1,293,867.60-609,998.80

Finding the Fourth Proportional to 864,090.40, 1,293,867.60 and 609,998.80

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Solution

The fourth proportional to 864,090.40, 1,293,867.60 and 609,998.80 is: 913,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,090.40 : 1,293,867.60 = 609,998.80 : x
  2. Step 2: Convert to fraction form
    864,090.40/1,293,867.60 = 609,998.80/x
  3. Step 3: Cross multiply
    864,090.40x = 1,293,867.60 × 609,998.80
  4. Step 4: Simplify right side
    864,090.40x = 789,257,683,358.88
  5. Step 5: Solve for x
    x = 789,257,683,358.88/864,090.40
  6. Step 6: Final answer
    x = 913,397.12

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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.