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Finding the Fourth Proportional to 554,979.33, 832,131.90 and 217,615.80

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Solution

The fourth proportional to 554,979.33, 832,131.90 and 217,615.80 is: 326,291.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,979.33 : 832,131.90 = 217,615.80 : x
  2. Step 2: Convert to fraction form
    554,979.33/832,131.90 = 217,615.80/x
  3. Step 3: Cross multiply
    554,979.33x = 832,131.90 × 217,615.80
  4. Step 4: Simplify right side
    554,979.33x = 181,085,049,124.02
  5. Step 5: Solve for x
    x = 181,085,049,124.02/554,979.33
  6. Step 6: Final answer
    x = 326,291.52

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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.