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Finding the Fourth Proportional to 499,422.40, 749,603.40 and 262,934.80

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Solution

The fourth proportional to 499,422.40, 749,603.40 and 262,934.80 is: 394,649.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,422.40 : 749,603.40 = 262,934.80 : x
  2. Step 2: Convert to fraction form
    499,422.40/749,603.40 = 262,934.80/x
  3. Step 3: Cross multiply
    499,422.40x = 749,603.40 × 262,934.80
  4. Step 4: Simplify right side
    499,422.40x = 197,096,820,058.32
  5. Step 5: Solve for x
    x = 197,096,820,058.32/499,422.40
  6. Step 6: Final answer
    x = 394,649.54

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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.