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Finding the Fourth Proportional to 619,312.68, 928,923.90 and 277,861.85

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Solution

The fourth proportional to 619,312.68, 928,923.90 and 277,861.85 is: 416,772.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,312.68 : 928,923.90 = 277,861.85 : x
  2. Step 2: Convert to fraction form
    619,312.68/928,923.90 = 277,861.85/x
  3. Step 3: Cross multiply
    619,312.68x = 928,923.90 × 277,861.85
  4. Step 4: Simplify right side
    619,312.68x = 258,112,508,718.60
  5. Step 5: Solve for x
    x = 258,112,508,718.60/619,312.68
  6. Step 6: Final answer
    x = 416,772.52

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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.