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Finding the Fourth Proportional to 541,409.16, 747,135.58 and 299,686.56

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Solution

The fourth proportional to 541,409.16, 747,135.58 and 299,686.56 is: 413,562.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,409.16 : 747,135.58 = 299,686.56 : x
  2. Step 2: Convert to fraction form
    541,409.16/747,135.58 = 299,686.56/x
  3. Step 3: Cross multiply
    541,409.16x = 747,135.58 × 299,686.56
  4. Step 4: Simplify right side
    541,409.16x = 223,906,491,823.81
  5. Step 5: Solve for x
    x = 223,906,491,823.81/541,409.16
  6. Step 6: Final answer
    x = 413,562.44

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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.