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Finding the Fourth Proportional to 553,812.60, 830,780.82 and 174,787.26

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Solution

The fourth proportional to 553,812.60, 830,780.82 and 174,787.26 is: 262,200.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,812.60 : 830,780.82 = 174,787.26 : x
  2. Step 2: Convert to fraction form
    553,812.60/830,780.82 = 174,787.26/x
  3. Step 3: Cross multiply
    553,812.60x = 830,780.82 × 174,787.26
  4. Step 4: Simplify right side
    553,812.60x = 145,209,903,188.35
  5. Step 5: Solve for x
    x = 145,209,903,188.35/553,812.60
  6. Step 6: Final answer
    x = 262,200.43

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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.