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Finding the Fourth Proportional to 867,116.40, 1,300,091.40 and 462,375.60

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Solution

The fourth proportional to 867,116.40, 1,300,091.40 and 462,375.60 is: 693,252.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,116.40 : 1,300,091.40 = 462,375.60 : x
  2. Step 2: Convert to fraction form
    867,116.40/1,300,091.40 = 462,375.60/x
  3. Step 3: Cross multiply
    867,116.40x = 1,300,091.40 × 462,375.60
  4. Step 4: Simplify right side
    867,116.40x = 601,130,541,129.84
  5. Step 5: Solve for x
    x = 601,130,541,129.84/867,116.40
  6. Step 6: Final answer
    x = 693,252.42

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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.