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Finding the Fourth Proportional to 356,608.40, 534,936.90 and 113,430.20

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Solution

The fourth proportional to 356,608.40, 534,936.90 and 113,430.20 is: 170,153.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,608.40 : 534,936.90 = 113,430.20 : x
  2. Step 2: Convert to fraction form
    356,608.40/534,936.90 = 113,430.20/x
  3. Step 3: Cross multiply
    356,608.40x = 534,936.90 × 113,430.20
  4. Step 4: Simplify right side
    356,608.40x = 60,677,999,554.38
  5. Step 5: Solve for x
    x = 60,677,999,554.38/356,608.40
  6. Step 6: Final answer
    x = 170,153.03

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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.