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Finding the Fourth Proportional to 573,643.54, 791,629.66 and 315,546.92

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Solution

The fourth proportional to 573,643.54, 791,629.66 and 315,546.92 is: 435,455.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,643.54 : 791,629.66 = 315,546.92 : x
  2. Step 2: Convert to fraction form
    573,643.54/791,629.66 = 315,546.92/x
  3. Step 3: Cross multiply
    573,643.54x = 791,629.66 × 315,546.92
  4. Step 4: Simplify right side
    573,643.54x = 249,796,300,993.65
  5. Step 5: Solve for x
    x = 249,796,300,993.65/573,643.54
  6. Step 6: Final answer
    x = 435,455.62

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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.