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Finding the Fourth Proportional to 473,228.80, 709,843.20 and 140,804.80

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Solution

The fourth proportional to 473,228.80, 709,843.20 and 140,804.80 is: 211,207.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,228.80 : 709,843.20 = 140,804.80 : x
  2. Step 2: Convert to fraction form
    473,228.80/709,843.20 = 140,804.80/x
  3. Step 3: Cross multiply
    473,228.80x = 709,843.20 × 140,804.80
  4. Step 4: Simplify right side
    473,228.80x = 99,949,329,807.36
  5. Step 5: Solve for x
    x = 99,949,329,807.36/473,228.80
  6. Step 6: Final answer
    x = 211,207.20

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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.