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Finding the Fourth Proportional to 619,757.10, 930,182.40 and 366,721.20

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Solution

The fourth proportional to 619,757.10, 930,182.40 and 366,721.20 is: 550,405.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,757.10 : 930,182.40 = 366,721.20 : x
  2. Step 2: Convert to fraction form
    619,757.10/930,182.40 = 366,721.20/x
  3. Step 3: Cross multiply
    619,757.10x = 930,182.40 × 366,721.20
  4. Step 4: Simplify right side
    619,757.10x = 341,117,605,946.88
  5. Step 5: Solve for x
    x = 341,117,605,946.88/619,757.10
  6. Step 6: Final answer
    x = 550,405.32

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1.5x scale

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.