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Finding the Fourth Proportional to 469,893.32, 648,436.29 and 255,029.06

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Solution

The fourth proportional to 469,893.32, 648,436.29 and 255,029.06 is: 351,931.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,893.32 : 648,436.29 = 255,029.06 : x
  2. Step 2: Convert to fraction form
    469,893.32/648,436.29 = 255,029.06/x
  3. Step 3: Cross multiply
    469,893.32x = 648,436.29 × 255,029.06
  4. Step 4: Simplify right side
    469,893.32x = 165,370,097,508.59
  5. Step 5: Solve for x
    x = 165,370,097,508.59/469,893.32
  6. Step 6: Final answer
    x = 351,931.15

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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.