Home / 930,400.80-1,396,913.40-576,106.80

Finding the Fourth Proportional to 930,400.80, 1,396,913.40 and 576,106.80

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Solution

The fourth proportional to 930,400.80, 1,396,913.40 and 576,106.80 is: 864,972.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,400.80 : 1,396,913.40 = 576,106.80 : x
  2. Step 2: Convert to fraction form
    930,400.80/1,396,913.40 = 576,106.80/x
  3. Step 3: Cross multiply
    930,400.80x = 1,396,913.40 × 576,106.80
  4. Step 4: Simplify right side
    930,400.80x = 804,771,308,751.12
  5. Step 5: Solve for x
    x = 804,771,308,751.12/930,400.80
  6. Step 6: Final answer
    x = 864,972.72

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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.