Home / 930,750.89-1,284,296.31-522,774.54

Finding the Fourth Proportional to 930,750.89, 1,284,296.31 and 522,774.54

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Solution

The fourth proportional to 930,750.89, 1,284,296.31 and 522,774.54 is: 721,350.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,750.89 : 1,284,296.31 = 522,774.54 : x
  2. Step 2: Convert to fraction form
    930,750.89/1,284,296.31 = 522,774.54/x
  3. Step 3: Cross multiply
    930,750.89x = 1,284,296.31 × 522,774.54
  4. Step 4: Simplify right side
    930,750.89x = 671,397,412,683.95
  5. Step 5: Solve for x
    x = 671,397,412,683.95/930,750.89
  6. Step 6: Final answer
    x = 721,350.28

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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.