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Finding the Fourth Proportional to 382,041.90, 527,186.94 and 220,907.40

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Solution

The fourth proportional to 382,041.90, 527,186.94 and 220,907.40 is: 304,834.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,041.90 : 527,186.94 = 220,907.40 : x
  2. Step 2: Convert to fraction form
    382,041.90/527,186.94 = 220,907.40/x
  3. Step 3: Cross multiply
    382,041.90x = 527,186.94 × 220,907.40
  4. Step 4: Simplify right side
    382,041.90x = 116,459,496,229.36
  5. Step 5: Solve for x
    x = 116,459,496,229.36/382,041.90
  6. Step 6: Final answer
    x = 304,834.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.