Home / 356,087.80-534,434.10-145,876.60

Finding the Fourth Proportional to 356,087.80, 534,434.10 and 145,876.60

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Solution

The fourth proportional to 356,087.80, 534,434.10 and 145,876.60 is: 218,938.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,087.80 : 534,434.10 = 145,876.60 : x
  2. Step 2: Convert to fraction form
    356,087.80/534,434.10 = 145,876.60/x
  3. Step 3: Cross multiply
    356,087.80x = 534,434.10 × 145,876.60
  4. Step 4: Simplify right side
    356,087.80x = 77,961,429,432.06
  5. Step 5: Solve for x
    x = 77,961,429,432.06/356,087.80
  6. Step 6: Final answer
    x = 218,938.78

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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.