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Finding the Fourth Proportional to 1,272,492.56, 1,904,584.79 and 935,444.00

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Solution

The fourth proportional to 1,272,492.56, 1,904,584.79 and 935,444.00 is: 1,400,112.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,492.56 : 1,904,584.79 = 935,444.00 : x
  2. Step 2: Convert to fraction form
    1,272,492.56/1,904,584.79 = 935,444.00/x
  3. Step 3: Cross multiply
    1,272,492.56x = 1,904,584.79 × 935,444.00
  4. Step 4: Simplify right side
    1,272,492.56x = 1,781,632,400,096.62
  5. Step 5: Solve for x
    x = 1,781,632,400,096.62/1,272,492.56
  6. Step 6: Final answer
    x = 1,400,112.24

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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.