Home / 831,566.40-1,247,349.60-411,662.40

Finding the Fourth Proportional to 831,566.40, 1,247,349.60 and 411,662.40

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Solution

The fourth proportional to 831,566.40, 1,247,349.60 and 411,662.40 is: 617,493.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,566.40 : 1,247,349.60 = 411,662.40 : x
  2. Step 2: Convert to fraction form
    831,566.40/1,247,349.60 = 411,662.40/x
  3. Step 3: Cross multiply
    831,566.40x = 1,247,349.60 × 411,662.40
  4. Step 4: Simplify right side
    831,566.40x = 513,486,929,975.04
  5. Step 5: Solve for x
    x = 513,486,929,975.04/831,566.40
  6. Step 6: Final answer
    x = 617,493.60

Related Problems

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Half scale
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Double scale
Find fourth proportional to 831,567.40, 1,247,351.10 and 411,663.40
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.