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Finding the Fourth Proportional to 607,716.40, 911,574.60 and 164,484.40

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Solution

The fourth proportional to 607,716.40, 911,574.60 and 164,484.40 is: 246,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,716.40 : 911,574.60 = 164,484.40 : x
  2. Step 2: Convert to fraction form
    607,716.40/911,574.60 = 164,484.40/x
  3. Step 3: Cross multiply
    607,716.40x = 911,574.60 × 164,484.40
  4. Step 4: Simplify right side
    607,716.40x = 149,939,801,136.24
  5. Step 5: Solve for x
    x = 149,939,801,136.24/607,716.40
  6. Step 6: Final answer
    x = 246,726.60

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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.