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Finding the Fourth Proportional to 570,625.08, 787,452.98 and 315,970.80

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Solution

The fourth proportional to 570,625.08, 787,452.98 and 315,970.80 is: 436,034.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,625.08 : 787,452.98 = 315,970.80 : x
  2. Step 2: Convert to fraction form
    570,625.08/787,452.98 = 315,970.80/x
  3. Step 3: Cross multiply
    570,625.08x = 787,452.98 × 315,970.80
  4. Step 4: Simplify right side
    570,625.08x = 248,812,148,052.98
  5. Step 5: Solve for x
    x = 248,812,148,052.98/570,625.08
  6. Step 6: Final answer
    x = 436,034.37

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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.