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Finding the Fourth Proportional to 608,731.20, 912,319.20 and 467,791.20

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Solution

The fourth proportional to 608,731.20, 912,319.20 and 467,791.20 is: 701,089.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,731.20 : 912,319.20 = 467,791.20 : x
  2. Step 2: Convert to fraction form
    608,731.20/912,319.20 = 467,791.20/x
  3. Step 3: Cross multiply
    608,731.20x = 912,319.20 × 467,791.20
  4. Step 4: Simplify right side
    608,731.20x = 426,774,893,351.04
  5. Step 5: Solve for x
    x = 426,774,893,351.04/608,731.20
  6. Step 6: Final answer
    x = 701,089.24

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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.