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Finding the Fourth Proportional to 581,700.16, 802,476.80 and 339,992.96

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Solution

The fourth proportional to 581,700.16, 802,476.80 and 339,992.96 is: 469,032.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,700.16 : 802,476.80 = 339,992.96 : x
  2. Step 2: Convert to fraction form
    581,700.16/802,476.80 = 339,992.96/x
  3. Step 3: Cross multiply
    581,700.16x = 802,476.80 × 339,992.96
  4. Step 4: Simplify right side
    581,700.16x = 272,836,462,563.33
  5. Step 5: Solve for x
    x = 272,836,462,563.33/581,700.16
  6. Step 6: Final answer
    x = 469,032.81

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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.