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Finding the Fourth Proportional to 459,445.88, 634,034.50 and 255,491.12

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Solution

The fourth proportional to 459,445.88, 634,034.50 and 255,491.12 is: 352,577.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,445.88 : 634,034.50 = 255,491.12 : x
  2. Step 2: Convert to fraction form
    459,445.88/634,034.50 = 255,491.12/x
  3. Step 3: Cross multiply
    459,445.88x = 634,034.50 × 255,491.12
  4. Step 4: Simplify right side
    459,445.88x = 161,990,180,714.74
  5. Step 5: Solve for x
    x = 161,990,180,714.74/459,445.88
  6. Step 6: Final answer
    x = 352,577.29

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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.