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Finding the Fourth Proportional to 575,297.12, 793,915.34 and 317,183.18

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Solution

The fourth proportional to 575,297.12, 793,915.34 and 317,183.18 is: 437,715.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,297.12 : 793,915.34 = 317,183.18 : x
  2. Step 2: Convert to fraction form
    575,297.12/793,915.34 = 317,183.18/x
  3. Step 3: Cross multiply
    575,297.12x = 793,915.34 × 317,183.18
  4. Step 4: Simplify right side
    575,297.12x = 251,816,592,191.98
  5. Step 5: Solve for x
    x = 251,816,592,191.98/575,297.12
  6. Step 6: Final answer
    x = 437,715.72

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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.