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Finding the Fourth Proportional to 472,173.66, 651,580.62 and 257,309.10

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Solution

The fourth proportional to 472,173.66, 651,580.62 and 257,309.10 is: 355,076.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,173.66 : 651,580.62 = 257,309.10 : x
  2. Step 2: Convert to fraction form
    472,173.66/651,580.62 = 257,309.10/x
  3. Step 3: Cross multiply
    472,173.66x = 651,580.62 × 257,309.10
  4. Step 4: Simplify right side
    472,173.66x = 167,657,622,909.64
  5. Step 5: Solve for x
    x = 167,657,622,909.64/472,173.66
  6. Step 6: Final answer
    x = 355,076.19

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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.