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Finding the Fourth Proportional to 475,528.80, 713,127.78 and 191,134.92

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Solution

The fourth proportional to 475,528.80, 713,127.78 and 191,134.92 is: 286,635.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,528.80 : 713,127.78 = 191,134.92 : x
  2. Step 2: Convert to fraction form
    475,528.80/713,127.78 = 191,134.92/x
  3. Step 3: Cross multiply
    475,528.80x = 713,127.78 × 191,134.92
  4. Step 4: Simplify right side
    475,528.80x = 136,303,621,180.08
  5. Step 5: Solve for x
    x = 136,303,621,180.08/475,528.80
  6. Step 6: Final answer
    x = 286,635.89

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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.