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Finding the Fourth Proportional to 707,762, 1,062,099.74 and 258,445.25

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Solution

The fourth proportional to 707,762, 1,062,099.74 and 258,445.25 is: 387,834.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,762 : 1,062,099.74 = 258,445.25 : x
  2. Step 2: Convert to fraction form
    707,762/1,062,099.74 = 258,445.25/x
  3. Step 3: Cross multiply
    707,762x = 1,062,099.74 × 258,445.25
  4. Step 4: Simplify right side
    707,762x = 274,494,631,537.01
  5. Step 5: Solve for x
    x = 274,494,631,537.01/707,762
  6. Step 6: Final answer
    x = 387,834.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.