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Finding the Fourth Proportional to 577,658.60, 866,487.90 and 297,722.60

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Solution

The fourth proportional to 577,658.60, 866,487.90 and 297,722.60 is: 446,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,658.60 : 866,487.90 = 297,722.60 : x
  2. Step 2: Convert to fraction form
    577,658.60/866,487.90 = 297,722.60/x
  3. Step 3: Cross multiply
    577,658.60x = 866,487.90 × 297,722.60
  4. Step 4: Simplify right side
    577,658.60x = 257,973,030,456.54
  5. Step 5: Solve for x
    x = 257,973,030,456.54/577,658.60
  6. Step 6: Final answer
    x = 446,583.90

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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.