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Finding the Fourth Proportional to 237,624.80, 356,437.20 and 221,878.40

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Solution

The fourth proportional to 237,624.80, 356,437.20 and 221,878.40 is: 332,817.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    237,624.80 : 356,437.20 = 221,878.40 : x
  2. Step 2: Convert to fraction form
    237,624.80/356,437.20 = 221,878.40/x
  3. Step 3: Cross multiply
    237,624.80x = 356,437.20 × 221,878.40
  4. Step 4: Simplify right side
    237,624.80x = 79,085,715,636.48
  5. Step 5: Solve for x
    x = 79,085,715,636.48/237,624.80
  6. Step 6: Final answer
    x = 332,817.60

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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.