Home / 930,813.60-1,284,675.24-775,518.78

Finding the Fourth Proportional to 930,813.60, 1,284,675.24 and 775,518.78

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Solution

The fourth proportional to 930,813.60, 1,284,675.24 and 775,518.78 is: 1,070,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,813.60 : 1,284,675.24 = 775,518.78 : x
  2. Step 2: Convert to fraction form
    930,813.60/1,284,675.24 = 775,518.78/x
  3. Step 3: Cross multiply
    930,813.60x = 1,284,675.24 × 775,518.78
  4. Step 4: Simplify right side
    930,813.60x = 996,289,774,821.01
  5. Step 5: Solve for x
    x = 996,289,774,821.01/930,813.60
  6. Step 6: Final answer
    x = 1,070,342.95

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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.