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Finding the Fourth Proportional to 671,028, 926,025.12 and 369,228.48

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Solution

The fourth proportional to 671,028, 926,025.12 and 369,228.48 is: 509,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,028 : 926,025.12 = 369,228.48 : x
  2. Step 2: Convert to fraction form
    671,028/926,025.12 = 369,228.48/x
  3. Step 3: Cross multiply
    671,028x = 926,025.12 × 369,228.48
  4. Step 4: Simplify right side
    671,028x = 341,914,847,499.42
  5. Step 5: Solve for x
    x = 341,914,847,499.42/671,028
  6. Step 6: Final answer
    x = 509,538.87

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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.