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Finding the Fourth Proportional to 474,136.70, 711,205.05 and 474,136.70

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Solution

The fourth proportional to 474,136.70, 711,205.05 and 474,136.70 is: 711,205.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,136.70 : 711,205.05 = 474,136.70 : x
  2. Step 2: Convert to fraction form
    474,136.70/711,205.05 = 474,136.70/x
  3. Step 3: Cross multiply
    474,136.70x = 711,205.05 × 474,136.70
  4. Step 4: Simplify right side
    474,136.70x = 337,208,415,430.34
  5. Step 5: Solve for x
    x = 337,208,415,430.34/474,136.70
  6. Step 6: Final answer
    x = 711,205.05

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Similar ratio
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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.