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Finding the Fourth Proportional to 480,838.11, 663,592.59 and 274,111.43

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Solution

The fourth proportional to 480,838.11, 663,592.59 and 274,111.43 is: 378,294.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,838.11 : 663,592.59 = 274,111.43 : x
  2. Step 2: Convert to fraction form
    480,838.11/663,592.59 = 274,111.43/x
  3. Step 3: Cross multiply
    480,838.11x = 663,592.59 × 274,111.43
  4. Step 4: Simplify right side
    480,838.11x = 181,898,312,411.75
  5. Step 5: Solve for x
    x = 181,898,312,411.75/480,838.11
  6. Step 6: Final answer
    x = 378,294.29

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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.