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Finding the Fourth Proportional to 553,866.20, 830,733.42 and 179,888.84

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Solution

The fourth proportional to 553,866.20, 830,733.42 and 179,888.84 is: 269,811.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,866.20 : 830,733.42 = 179,888.84 : x
  2. Step 2: Convert to fraction form
    553,866.20/830,733.42 = 179,888.84/x
  3. Step 3: Cross multiply
    553,866.20x = 830,733.42 × 179,888.84
  4. Step 4: Simplify right side
    553,866.20x = 149,439,671,273.03
  5. Step 5: Solve for x
    x = 149,439,671,273.03/553,866.20
  6. Step 6: Final answer
    x = 269,811.86

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1.5x scale

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.