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Finding the Fourth Proportional to 644,904.90, 967,357.35 and 201,672.90

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Solution

The fourth proportional to 644,904.90, 967,357.35 and 201,672.90 is: 302,509.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,904.90 : 967,357.35 = 201,672.90 : x
  2. Step 2: Convert to fraction form
    644,904.90/967,357.35 = 201,672.90/x
  3. Step 3: Cross multiply
    644,904.90x = 967,357.35 × 201,672.90
  4. Step 4: Simplify right side
    644,904.90x = 195,089,762,110.82
  5. Step 5: Solve for x
    x = 195,089,762,110.82/644,904.90
  6. Step 6: Final answer
    x = 302,509.35

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Half scale
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Double scale
Find fourth proportional to 644,905.90, 967,358.85 and 201,673.90
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.