Home / 928,112.80-1,391,132.40-528,944.80

Finding the Fourth Proportional to 928,112.80, 1,391,132.40 and 528,944.80

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Solution

The fourth proportional to 928,112.80, 1,391,132.40 and 528,944.80 is: 792,826.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,112.80 : 1,391,132.40 = 528,944.80 : x
  2. Step 2: Convert to fraction form
    928,112.80/1,391,132.40 = 528,944.80/x
  3. Step 3: Cross multiply
    928,112.80x = 1,391,132.40 × 528,944.80
  4. Step 4: Simplify right side
    928,112.80x = 735,832,249,091.52
  5. Step 5: Solve for x
    x = 735,832,249,091.52/928,112.80
  6. Step 6: Final answer
    x = 792,826.31

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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.