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Finding the Fourth Proportional to 464,420.22, 640,627.73 and 292,064.81

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Solution

The fourth proportional to 464,420.22, 640,627.73 and 292,064.81 is: 402,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,420.22 : 640,627.73 = 292,064.81 : x
  2. Step 2: Convert to fraction form
    464,420.22/640,627.73 = 292,064.81/x
  3. Step 3: Cross multiply
    464,420.22x = 640,627.73 × 292,064.81
  4. Step 4: Simplify right side
    464,420.22x = 187,104,811,579.72
  5. Step 5: Solve for x
    x = 187,104,811,579.72/464,420.22
  6. Step 6: Final answer
    x = 402,878.26

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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.