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Finding the Fourth Proportional to 966,763.20, 1,450,663.20 and 405,854.40

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Solution

The fourth proportional to 966,763.20, 1,450,663.20 and 405,854.40 is: 608,999.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,763.20 : 1,450,663.20 = 405,854.40 : x
  2. Step 2: Convert to fraction form
    966,763.20/1,450,663.20 = 405,854.40/x
  3. Step 3: Cross multiply
    966,763.20x = 1,450,663.20 × 405,854.40
  4. Step 4: Simplify right side
    966,763.20x = 588,758,042,638.08
  5. Step 5: Solve for x
    x = 588,758,042,638.08/966,763.20
  6. Step 6: Final answer
    x = 608,999.23

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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.