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Finding the Fourth Proportional to 619,047.40, 854,220.90 and 364,383.40

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Solution

The fourth proportional to 619,047.40, 854,220.90 and 364,383.40 is: 502,811.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,047.40 : 854,220.90 = 364,383.40 : x
  2. Step 2: Convert to fraction form
    619,047.40/854,220.90 = 364,383.40/x
  3. Step 3: Cross multiply
    619,047.40x = 854,220.90 × 364,383.40
  4. Step 4: Simplify right side
    619,047.40x = 311,263,915,893.06
  5. Step 5: Solve for x
    x = 311,263,915,893.06/619,047.40
  6. Step 6: Final answer
    x = 502,811.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.