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Finding the Fourth Proportional to 1,947,848.80, 2,920,390.80 and 883,400.80

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Solution

The fourth proportional to 1,947,848.80, 2,920,390.80 and 883,400.80 is: 1,324,474.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,848.80 : 2,920,390.80 = 883,400.80 : x
  2. Step 2: Convert to fraction form
    1,947,848.80/2,920,390.80 = 883,400.80/x
  3. Step 3: Cross multiply
    1,947,848.80x = 2,920,390.80 × 883,400.80
  4. Step 4: Simplify right side
    1,947,848.80x = 2,579,875,569,032.64
  5. Step 5: Solve for x
    x = 2,579,875,569,032.64/1,947,848.80
  6. Step 6: Final answer
    x = 1,324,474.25

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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.