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Finding the Fourth Proportional to 283,603.20, 425,404.80 and 141,885.60

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Solution

The fourth proportional to 283,603.20, 425,404.80 and 141,885.60 is: 212,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,603.20 : 425,404.80 = 141,885.60 : x
  2. Step 2: Convert to fraction form
    283,603.20/425,404.80 = 141,885.60/x
  3. Step 3: Cross multiply
    283,603.20x = 425,404.80 × 141,885.60
  4. Step 4: Simplify right side
    283,603.20x = 60,358,815,290.88
  5. Step 5: Solve for x
    x = 60,358,815,290.88/283,603.20
  6. Step 6: Final answer
    x = 212,828.40

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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.