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Finding the Fourth Proportional to 573,076.44, 790,806.65 and 314,971.56

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Solution

The fourth proportional to 573,076.44, 790,806.65 and 314,971.56 is: 434,639.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,076.44 : 790,806.65 = 314,971.56 : x
  2. Step 2: Convert to fraction form
    573,076.44/790,806.65 = 314,971.56/x
  3. Step 3: Cross multiply
    573,076.44x = 790,806.65 × 314,971.56
  4. Step 4: Simplify right side
    573,076.44x = 249,081,602,634.02
  5. Step 5: Solve for x
    x = 249,081,602,634.02/573,076.44
  6. Step 6: Final answer
    x = 434,639.40

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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.