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Finding the Fourth Proportional to 459,886.98, 634,673.88 and 255,937.31

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Solution

The fourth proportional to 459,886.98, 634,673.88 and 255,937.31 is: 353,210.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,886.98 : 634,673.88 = 255,937.31 : x
  2. Step 2: Convert to fraction form
    459,886.98/634,673.88 = 255,937.31/x
  3. Step 3: Cross multiply
    459,886.98x = 634,673.88 × 255,937.31
  4. Step 4: Simplify right side
    459,886.98x = 162,436,722,401.09
  5. Step 5: Solve for x
    x = 162,436,722,401.09/459,886.98
  6. Step 6: Final answer
    x = 353,210.09

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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.