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Finding the Fourth Proportional to 436,126.40, 653,703.60 and 169,798.40

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Solution

The fourth proportional to 436,126.40, 653,703.60 and 169,798.40 is: 254,508.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,126.40 : 653,703.60 = 169,798.40 : x
  2. Step 2: Convert to fraction form
    436,126.40/653,703.60 = 169,798.40/x
  3. Step 3: Cross multiply
    436,126.40x = 653,703.60 × 169,798.40
  4. Step 4: Simplify right side
    436,126.40x = 110,997,825,354.24
  5. Step 5: Solve for x
    x = 110,997,825,354.24/436,126.40
  6. Step 6: Final answer
    x = 254,508.38

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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.