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Finding the Fourth Proportional to 400,973.60, 601,622.40 and 176,376.80

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Solution

The fourth proportional to 400,973.60, 601,622.40 and 176,376.80 is: 264,636.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,973.60 : 601,622.40 = 176,376.80 : x
  2. Step 2: Convert to fraction form
    400,973.60/601,622.40 = 176,376.80/x
  3. Step 3: Cross multiply
    400,973.60x = 601,622.40 × 176,376.80
  4. Step 4: Simplify right side
    400,973.60x = 106,112,233,720.32
  5. Step 5: Solve for x
    x = 106,112,233,720.32/400,973.60
  6. Step 6: Final answer
    x = 264,636.46

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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.