Home / 528,938.33-729,932.58-287,218.94

Finding the Fourth Proportional to 528,938.33, 729,932.58 and 287,218.94

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Solution

The fourth proportional to 528,938.33, 729,932.58 and 287,218.94 is: 396,360.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,938.33 : 729,932.58 = 287,218.94 : x
  2. Step 2: Convert to fraction form
    528,938.33/729,932.58 = 287,218.94/x
  3. Step 3: Cross multiply
    528,938.33x = 729,932.58 × 287,218.94
  4. Step 4: Simplify right side
    528,938.33x = 209,650,458,249.40
  5. Step 5: Solve for x
    x = 209,650,458,249.40/528,938.33
  6. Step 6: Final answer
    x = 396,360.88

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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.