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Finding the Fourth Proportional to 577,683.40, 866,525.10 and 519,622.60

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Solution

The fourth proportional to 577,683.40, 866,525.10 and 519,622.60 is: 779,433.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,683.40 : 866,525.10 = 519,622.60 : x
  2. Step 2: Convert to fraction form
    577,683.40/866,525.10 = 519,622.60/x
  3. Step 3: Cross multiply
    577,683.40x = 866,525.10 × 519,622.60
  4. Step 4: Simplify right side
    577,683.40x = 450,266,025,427.26
  5. Step 5: Solve for x
    x = 450,266,025,427.26/577,683.40
  6. Step 6: Final answer
    x = 779,433.90

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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.