Home / 412,962.23-619,312.12-280,692.47

Finding the Fourth Proportional to 412,962.23, 619,312.12 and 280,692.47

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Solution

The fourth proportional to 412,962.23, 619,312.12 and 280,692.47 is: 420,949.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,962.23 : 619,312.12 = 280,692.47 : x
  2. Step 2: Convert to fraction form
    412,962.23/619,312.12 = 280,692.47/x
  3. Step 3: Cross multiply
    412,962.23x = 619,312.12 × 280,692.47
  4. Step 4: Simplify right side
    412,962.23x = 173,836,248,663.74
  5. Step 5: Solve for x
    x = 173,836,248,663.74/412,962.23
  6. Step 6: Final answer
    x = 420,949.51

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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.