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Finding the Fourth Proportional to 372,617.70, 520,483.80 and 372,617.70

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Solution

The fourth proportional to 372,617.70, 520,483.80 and 372,617.70 is: 520,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,617.70 : 520,483.80 = 372,617.70 : x
  2. Step 2: Convert to fraction form
    372,617.70/520,483.80 = 372,617.70/x
  3. Step 3: Cross multiply
    372,617.70x = 520,483.80 × 372,617.70
  4. Step 4: Simplify right side
    372,617.70x = 193,941,476,443.26
  5. Step 5: Solve for x
    x = 193,941,476,443.26/372,617.70
  6. Step 6: Final answer
    x = 520,483.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.