Home / 826,938.34-1,240,584.18-287,211.31

Finding the Fourth Proportional to 826,938.34, 1,240,584.18 and 287,211.31

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Solution

The fourth proportional to 826,938.34, 1,240,584.18 and 287,211.31 is: 430,878.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,938.34 : 1,240,584.18 = 287,211.31 : x
  2. Step 2: Convert to fraction form
    826,938.34/1,240,584.18 = 287,211.31/x
  3. Step 3: Cross multiply
    826,938.34x = 1,240,584.18 × 287,211.31
  4. Step 4: Simplify right side
    826,938.34x = 356,309,807,503.08
  5. Step 5: Solve for x
    x = 356,309,807,503.08/826,938.34
  6. Step 6: Final answer
    x = 430,878.33

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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.