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Finding the Fourth Proportional to 671,353.95, 926,492.90 and 365,415.56

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Solution

The fourth proportional to 671,353.95, 926,492.90 and 365,415.56 is: 504,286.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,353.95 : 926,492.90 = 365,415.56 : x
  2. Step 2: Convert to fraction form
    671,353.95/926,492.90 = 365,415.56/x
  3. Step 3: Cross multiply
    671,353.95x = 926,492.90 × 365,415.56
  4. Step 4: Simplify right side
    671,353.95x = 338,554,921,889.52
  5. Step 5: Solve for x
    x = 338,554,921,889.52/671,353.95
  6. Step 6: Final answer
    x = 504,286.78

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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.