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Finding the Fourth Proportional to 531,566.60, 797,349.90 and 266,145.80

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Solution

The fourth proportional to 531,566.60, 797,349.90 and 266,145.80 is: 399,218.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,566.60 : 797,349.90 = 266,145.80 : x
  2. Step 2: Convert to fraction form
    531,566.60/797,349.90 = 266,145.80/x
  3. Step 3: Cross multiply
    531,566.60x = 797,349.90 × 266,145.80
  4. Step 4: Simplify right side
    531,566.60x = 212,211,327,015.42
  5. Step 5: Solve for x
    x = 212,211,327,015.42/531,566.60
  6. Step 6: Final answer
    x = 399,218.70

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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.