Home / 826,938.84-1,240,584.93-287,211.81

Finding the Fourth Proportional to 826,938.84, 1,240,584.93 and 287,211.81

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Solution

The fourth proportional to 826,938.84, 1,240,584.93 and 287,211.81 is: 430,879.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,938.84 : 1,240,584.93 = 287,211.81 : x
  2. Step 2: Convert to fraction form
    826,938.84/1,240,584.93 = 287,211.81/x
  3. Step 3: Cross multiply
    826,938.84x = 1,240,584.93 × 287,211.81
  4. Step 4: Simplify right side
    826,938.84x = 356,310,643,204.02
  5. Step 5: Solve for x
    x = 356,310,643,204.02/826,938.84
  6. Step 6: Final answer
    x = 430,879.08

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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.