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Finding the Fourth Proportional to 595,080, 821,210.40 and 326,825.28

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Solution

The fourth proportional to 595,080, 821,210.40 and 326,825.28 is: 451,018.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    595,080 : 821,210.40 = 326,825.28 : x
  2. Step 2: Convert to fraction form
    595,080/821,210.40 = 326,825.28/x
  3. Step 3: Cross multiply
    595,080x = 821,210.40 × 326,825.28
  4. Step 4: Simplify right side
    595,080x = 268,392,318,918.91
  5. Step 5: Solve for x
    x = 268,392,318,918.91/595,080
  6. Step 6: Final answer
    x = 451,018.89

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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.