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Finding the Fourth Proportional to 313,770.60, 470,554.78 and 103,358.44

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Solution

The fourth proportional to 313,770.60, 470,554.78 and 103,358.44 is: 155,004.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,770.60 : 470,554.78 = 103,358.44 : x
  2. Step 2: Convert to fraction form
    313,770.60/470,554.78 = 103,358.44/x
  3. Step 3: Cross multiply
    313,770.60x = 470,554.78 × 103,358.44
  4. Step 4: Simplify right side
    313,770.60x = 48,635,807,995.34
  5. Step 5: Solve for x
    x = 48,635,807,995.34/313,770.60
  6. Step 6: Final answer
    x = 155,004.35

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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.