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Finding the Fourth Proportional to 459,574.13, 634,203.18 and 255,620.66

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Solution

The fourth proportional to 459,574.13, 634,203.18 and 255,620.66 is: 352,751.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,574.13 : 634,203.18 = 255,620.66 : x
  2. Step 2: Convert to fraction form
    459,574.13/634,203.18 = 255,620.66/x
  3. Step 3: Cross multiply
    459,574.13x = 634,203.18 × 255,620.66
  4. Step 4: Simplify right side
    459,574.13x = 162,115,430,996.58
  5. Step 5: Solve for x
    x = 162,115,430,996.58/459,574.13
  6. Step 6: Final answer
    x = 352,751.43

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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.