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Finding the Fourth Proportional to 605,195.40, 907,793.10 and 574,091.40

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Solution

The fourth proportional to 605,195.40, 907,793.10 and 574,091.40 is: 861,137.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,195.40 : 907,793.10 = 574,091.40 : x
  2. Step 2: Convert to fraction form
    605,195.40/907,793.10 = 574,091.40/x
  3. Step 3: Cross multiply
    605,195.40x = 907,793.10 × 574,091.40
  4. Step 4: Simplify right side
    605,195.40x = 521,156,211,689.34
  5. Step 5: Solve for x
    x = 521,156,211,689.34/605,195.40
  6. Step 6: Final answer
    x = 861,137.10

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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.