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Finding the Fourth Proportional to 587,903.80, 811,315.88 and 329,837.80

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Solution

The fourth proportional to 587,903.80, 811,315.88 and 329,837.80 is: 455,181.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,903.80 : 811,315.88 = 329,837.80 : x
  2. Step 2: Convert to fraction form
    587,903.80/811,315.88 = 329,837.80/x
  3. Step 3: Cross multiply
    587,903.80x = 811,315.88 × 329,837.80
  4. Step 4: Simplify right side
    587,903.80x = 267,602,644,964.26
  5. Step 5: Solve for x
    x = 267,602,644,964.26/587,903.80
  6. Step 6: Final answer
    x = 455,181.01

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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.