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Finding the Fourth Proportional to 652,118.80, 978,178.20 and 297,824.80

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Solution

The fourth proportional to 652,118.80, 978,178.20 and 297,824.80 is: 446,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,118.80 : 978,178.20 = 297,824.80 : x
  2. Step 2: Convert to fraction form
    652,118.80/978,178.20 = 297,824.80/x
  3. Step 3: Cross multiply
    652,118.80x = 978,178.20 × 297,824.80
  4. Step 4: Simplify right side
    652,118.80x = 291,325,726,779.36
  5. Step 5: Solve for x
    x = 291,325,726,779.36/652,118.80
  6. Step 6: Final answer
    x = 446,737.20

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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.