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Finding the Fourth Proportional to 539,381.40, 809,946.90 and 362,671.80

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Solution

The fourth proportional to 539,381.40, 809,946.90 and 362,671.80 is: 544,595.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,381.40 : 809,946.90 = 362,671.80 : x
  2. Step 2: Convert to fraction form
    539,381.40/809,946.90 = 362,671.80/x
  3. Step 3: Cross multiply
    539,381.40x = 809,946.90 × 362,671.80
  4. Step 4: Simplify right side
    539,381.40x = 293,744,900,127.42
  5. Step 5: Solve for x
    x = 293,744,900,127.42/539,381.40
  6. Step 6: Final answer
    x = 544,595.90

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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.