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Finding the Fourth Proportional to 541,856.79, 747,786.99 and 300,139.34

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Solution

The fourth proportional to 541,856.79, 747,786.99 and 300,139.34 is: 414,205.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,856.79 : 747,786.99 = 300,139.34 : x
  2. Step 2: Convert to fraction form
    541,856.79/747,786.99 = 300,139.34/x
  3. Step 3: Cross multiply
    541,856.79x = 747,786.99 × 300,139.34
  4. Step 4: Simplify right side
    541,856.79x = 224,440,293,639.19
  5. Step 5: Solve for x
    x = 224,440,293,639.19/541,856.79
  6. Step 6: Final answer
    x = 414,205.93

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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.