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Finding the Fourth Proportional to 537,745.40, 806,423.70 and 271,417.40

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Solution

The fourth proportional to 537,745.40, 806,423.70 and 271,417.40 is: 407,027.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,745.40 : 806,423.70 = 271,417.40 : x
  2. Step 2: Convert to fraction form
    537,745.40/806,423.70 = 271,417.40/x
  3. Step 3: Cross multiply
    537,745.40x = 806,423.70 × 271,417.40
  4. Step 4: Simplify right side
    537,745.40x = 218,877,423,952.38
  5. Step 5: Solve for x
    x = 218,877,423,952.38/537,745.40
  6. Step 6: Final answer
    x = 407,027.98

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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.