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Finding the Fourth Proportional to 482,638.10, 666,081.93 and 264,888.86

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Solution

The fourth proportional to 482,638.10, 666,081.93 and 264,888.86 is: 365,569.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,638.10 : 666,081.93 = 264,888.86 : x
  2. Step 2: Convert to fraction form
    482,638.10/666,081.93 = 264,888.86/x
  3. Step 3: Cross multiply
    482,638.10x = 666,081.93 × 264,888.86
  4. Step 4: Simplify right side
    482,638.10x = 176,437,679,773.89
  5. Step 5: Solve for x
    x = 176,437,679,773.89/482,638.10
  6. Step 6: Final answer
    x = 365,569.32

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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.