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Finding the Fourth Proportional to 594,085.28, 891,361.20 and 261,428

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Solution

The fourth proportional to 594,085.28, 891,361.20 and 261,428 is: 392,244.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,085.28 : 891,361.20 = 261,428 : x
  2. Step 2: Convert to fraction form
    594,085.28/891,361.20 = 261,428/x
  3. Step 3: Cross multiply
    594,085.28x = 891,361.20 × 261,428
  4. Step 4: Simplify right side
    594,085.28x = 233,026,775,793.60
  5. Step 5: Solve for x
    x = 233,026,775,793.60/594,085.28
  6. Step 6: Final answer
    x = 392,244.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.