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Finding the Fourth Proportional to 521,097.37, 719,113.30 and 291,653.73

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Solution

The fourth proportional to 521,097.37, 719,113.30 and 291,653.73 is: 402,481.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,097.37 : 719,113.30 = 291,653.73 : x
  2. Step 2: Convert to fraction form
    521,097.37/719,113.30 = 291,653.73/x
  3. Step 3: Cross multiply
    521,097.37x = 719,113.30 × 291,653.73
  4. Step 4: Simplify right side
    521,097.37x = 209,732,075,508.48
  5. Step 5: Solve for x
    x = 209,732,075,508.48/521,097.37
  6. Step 6: Final answer
    x = 402,481.55

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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.