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Finding the Fourth Proportional to 546,991, 754,873.50 and 308,527

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Solution

The fourth proportional to 546,991, 754,873.50 and 308,527 is: 425,781.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,991 : 754,873.50 = 308,527 : x
  2. Step 2: Convert to fraction form
    546,991/754,873.50 = 308,527/x
  3. Step 3: Cross multiply
    546,991x = 754,873.50 × 308,527
  4. Step 4: Simplify right side
    546,991x = 232,898,856,334.50
  5. Step 5: Solve for x
    x = 232,898,856,334.50/546,991
  6. Step 6: Final answer
    x = 425,781.88

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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.