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Finding the Fourth Proportional to 459,060.72, 632,836.14 and 320,810.42

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Solution

The fourth proportional to 459,060.72, 632,836.14 and 320,810.42 is: 442,251.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,060.72 : 632,836.14 = 320,810.42 : x
  2. Step 2: Convert to fraction form
    459,060.72/632,836.14 = 320,810.42/x
  3. Step 3: Cross multiply
    459,060.72x = 632,836.14 × 320,810.42
  4. Step 4: Simplify right side
    459,060.72x = 203,020,430,048.19
  5. Step 5: Solve for x
    x = 203,020,430,048.19/459,060.72
  6. Step 6: Final answer
    x = 442,251.80

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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.