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Finding the Fourth Proportional to 521,599.70, 719,825.29 and 292,166.84

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Solution

The fourth proportional to 521,599.70, 719,825.29 and 292,166.84 is: 403,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,599.70 : 719,825.29 = 292,166.84 : x
  2. Step 2: Convert to fraction form
    521,599.70/719,825.29 = 292,166.84/x
  3. Step 3: Cross multiply
    521,599.70x = 719,825.29 × 292,166.84
  4. Step 4: Simplify right side
    521,599.70x = 210,309,076,001.84
  5. Step 5: Solve for x
    x = 210,309,076,001.84/521,599.70
  6. Step 6: Final answer
    x = 403,200.15

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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.