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Finding the Fourth Proportional to 704,397.72, 972,487.74 and 463,108.44

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Solution

The fourth proportional to 704,397.72, 972,487.74 and 463,108.44 is: 639,365.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,397.72 : 972,487.74 = 463,108.44 : x
  2. Step 2: Convert to fraction form
    704,397.72/972,487.74 = 463,108.44/x
  3. Step 3: Cross multiply
    704,397.72x = 972,487.74 × 463,108.44
  4. Step 4: Simplify right side
    704,397.72x = 450,367,280,190.53
  5. Step 5: Solve for x
    x = 450,367,280,190.53/704,397.72
  6. Step 6: Final answer
    x = 639,365.05

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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.