Home / 541,638.43-747,459.70-312,193.85

Finding the Fourth Proportional to 541,638.43, 747,459.70 and 312,193.85

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Solution

The fourth proportional to 541,638.43, 747,459.70 and 312,193.85 is: 430,826.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,638.43 : 747,459.70 = 312,193.85 : x
  2. Step 2: Convert to fraction form
    541,638.43/747,459.70 = 312,193.85/x
  3. Step 3: Cross multiply
    541,638.43x = 747,459.70 × 312,193.85
  4. Step 4: Simplify right side
    541,638.43x = 233,352,316,945.06
  5. Step 5: Solve for x
    x = 233,352,316,945.06/541,638.43
  6. Step 6: Final answer
    x = 430,826.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.