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Finding the Fourth Proportional to 553,311.02, 830,175.70 and 216,592.32

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Solution

The fourth proportional to 553,311.02, 830,175.70 and 216,592.32 is: 324,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,311.02 : 830,175.70 = 216,592.32 : x
  2. Step 2: Convert to fraction form
    553,311.02/830,175.70 = 216,592.32/x
  3. Step 3: Cross multiply
    553,311.02x = 830,175.70 × 216,592.32
  4. Step 4: Simplify right side
    553,311.02x = 179,809,680,870.62
  5. Step 5: Solve for x
    x = 179,809,680,870.62/553,311.02
  6. Step 6: Final answer
    x = 324,970.36

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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.