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Finding the Fourth Proportional to 436,234.30, 612,127.70 and 436,234.30

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Solution

The fourth proportional to 436,234.30, 612,127.70 and 436,234.30 is: 612,127.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,234.30 : 612,127.70 = 436,234.30 : x
  2. Step 2: Convert to fraction form
    436,234.30/612,127.70 = 436,234.30/x
  3. Step 3: Cross multiply
    436,234.30x = 612,127.70 × 436,234.30
  4. Step 4: Simplify right side
    436,234.30x = 267,031,098,720.11
  5. Step 5: Solve for x
    x = 267,031,098,720.11/436,234.30
  6. Step 6: Final answer
    x = 612,127.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.