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Finding the Fourth Proportional to 459,761.55, 634,464.85 and 258,557.55

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Solution

The fourth proportional to 459,761.55, 634,464.85 and 258,557.55 is: 356,806.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,761.55 : 634,464.85 = 258,557.55 : x
  2. Step 2: Convert to fraction form
    459,761.55/634,464.85 = 258,557.55/x
  3. Step 3: Cross multiply
    459,761.55x = 634,464.85 × 258,557.55
  4. Step 4: Simplify right side
    459,761.55x = 164,045,678,763.28
  5. Step 5: Solve for x
    x = 164,045,678,763.28/459,761.55
  6. Step 6: Final answer
    x = 356,806.00

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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.