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Finding the Fourth Proportional to 436,901.40, 655,352.10 and 373,915.80

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Solution

The fourth proportional to 436,901.40, 655,352.10 and 373,915.80 is: 560,873.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,901.40 : 655,352.10 = 373,915.80 : x
  2. Step 2: Convert to fraction form
    436,901.40/655,352.10 = 373,915.80/x
  3. Step 3: Cross multiply
    436,901.40x = 655,352.10 × 373,915.80
  4. Step 4: Simplify right side
    436,901.40x = 245,046,504,753.18
  5. Step 5: Solve for x
    x = 245,046,504,753.18/436,901.40
  6. Step 6: Final answer
    x = 560,873.70

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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.