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Finding the Fourth Proportional to 1,426,436.40, 1,968,684.03 and 882,747.30

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Solution

The fourth proportional to 1,426,436.40, 1,968,684.03 and 882,747.30 is: 1,218,316.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,426,436.40 : 1,968,684.03 = 882,747.30 : x
  2. Step 2: Convert to fraction form
    1,426,436.40/1,968,684.03 = 882,747.30/x
  3. Step 3: Cross multiply
    1,426,436.40x = 1,968,684.03 × 882,747.30
  4. Step 4: Simplify right side
    1,426,436.40x = 1,737,850,512,035.62
  5. Step 5: Solve for x
    x = 1,737,850,512,035.62/1,426,436.40
  6. Step 6: Final answer
    x = 1,218,316.16

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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.