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Finding the Fourth Proportional to 644,993.40, 967,490.10 and 195,713.40

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Solution

The fourth proportional to 644,993.40, 967,490.10 and 195,713.40 is: 293,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,993.40 : 967,490.10 = 195,713.40 : x
  2. Step 2: Convert to fraction form
    644,993.40/967,490.10 = 195,713.40/x
  3. Step 3: Cross multiply
    644,993.40x = 967,490.10 × 195,713.40
  4. Step 4: Simplify right side
    644,993.40x = 189,350,776,937.34
  5. Step 5: Solve for x
    x = 189,350,776,937.34/644,993.40
  6. Step 6: Final answer
    x = 293,570.10

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Half scale
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Double scale
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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.