Home / 579,676.37-869,094.18-389,665.46

Finding the Fourth Proportional to 579,676.37, 869,094.18 and 389,665.46

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Solution

The fourth proportional to 579,676.37, 869,094.18 and 389,665.46 is: 584,215.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,676.37 : 869,094.18 = 389,665.46 : x
  2. Step 2: Convert to fraction form
    579,676.37/869,094.18 = 389,665.46/x
  3. Step 3: Cross multiply
    579,676.37x = 869,094.18 × 389,665.46
  4. Step 4: Simplify right side
    579,676.37x = 338,655,984,407.19
  5. Step 5: Solve for x
    x = 338,655,984,407.19/579,676.37
  6. Step 6: Final answer
    x = 584,215.61

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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.