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Finding the Fourth Proportional to 553,813.43, 830,720.15 and 174,772.58

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Solution

The fourth proportional to 553,813.43, 830,720.15 and 174,772.58 is: 262,158.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,813.43 : 830,720.15 = 174,772.58 : x
  2. Step 2: Convert to fraction form
    553,813.43/830,720.15 = 174,772.58/x
  3. Step 3: Cross multiply
    553,813.43x = 830,720.15 × 174,772.58
  4. Step 4: Simplify right side
    553,813.43x = 145,187,102,999.62
  5. Step 5: Solve for x
    x = 145,187,102,999.62/553,813.43
  6. Step 6: Final answer
    x = 262,158.87

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Similar ratio
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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.