Home / 664,326.40-993,865.20-576,554.80

Finding the Fourth Proportional to 664,326.40, 993,865.20 and 576,554.80

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Solution

The fourth proportional to 664,326.40, 993,865.20 and 576,554.80 is: 862,554.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,326.40 : 993,865.20 = 576,554.80 : x
  2. Step 2: Convert to fraction form
    664,326.40/993,865.20 = 576,554.80/x
  3. Step 3: Cross multiply
    664,326.40x = 993,865.20 × 576,554.80
  4. Step 4: Simplify right side
    664,326.40x = 573,017,751,612.96
  5. Step 5: Solve for x
    x = 573,017,751,612.96/664,326.40
  6. Step 6: Final answer
    x = 862,554.54

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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.