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Finding the Fourth Proportional to 553,633.05, 830,449.58 and 354,178.65

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Solution

The fourth proportional to 553,633.05, 830,449.58 and 354,178.65 is: 531,267.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,633.05 : 830,449.58 = 354,178.65 : x
  2. Step 2: Convert to fraction form
    553,633.05/830,449.58 = 354,178.65/x
  3. Step 3: Cross multiply
    553,633.05x = 830,449.58 × 354,178.65
  4. Step 4: Simplify right side
    553,633.05x = 294,127,509,366.57
  5. Step 5: Solve for x
    x = 294,127,509,366.57/553,633.05
  6. Step 6: Final answer
    x = 531,267.98

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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.