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Finding the Fourth Proportional to 553,671.15, 830,441.11 and 179,694.15

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Solution

The fourth proportional to 553,671.15, 830,441.11 and 179,694.15 is: 269,519.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,671.15 : 830,441.11 = 179,694.15 : x
  2. Step 2: Convert to fraction form
    553,671.15/830,441.11 = 179,694.15/x
  3. Step 3: Cross multiply
    553,671.15x = 830,441.11 × 179,694.15
  4. Step 4: Simplify right side
    553,671.15x = 149,225,409,386.51
  5. Step 5: Solve for x
    x = 149,225,409,386.51/553,671.15
  6. Step 6: Final answer
    x = 269,519.93

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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.