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Finding the Fourth Proportional to 369,076.60, 552,302.70 and 256,227.40

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Solution

The fourth proportional to 369,076.60, 552,302.70 and 256,227.40 is: 383,430.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,076.60 : 552,302.70 = 256,227.40 : x
  2. Step 2: Convert to fraction form
    369,076.60/552,302.70 = 256,227.40/x
  3. Step 3: Cross multiply
    369,076.60x = 552,302.70 × 256,227.40
  4. Step 4: Simplify right side
    369,076.60x = 141,515,084,833.98
  5. Step 5: Solve for x
    x = 141,515,084,833.98/369,076.60
  6. Step 6: Final answer
    x = 383,430.12

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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.