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Finding the Fourth Proportional to 1,411,238.07, 1,947,818.48 and 927,848.20

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Solution

The fourth proportional to 1,411,238.07, 1,947,818.48 and 927,848.20 is: 1,280,634.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,238.07 : 1,947,818.48 = 927,848.20 : x
  2. Step 2: Convert to fraction form
    1,411,238.07/1,947,818.48 = 927,848.20/x
  3. Step 3: Cross multiply
    1,411,238.07x = 1,947,818.48 × 927,848.20
  4. Step 4: Simplify right side
    1,411,238.07x = 1,807,279,870,594.74
  5. Step 5: Solve for x
    x = 1,807,279,870,594.74/1,411,238.07
  6. Step 6: Final answer
    x = 1,280,634.29

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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.