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Finding the Fourth Proportional to 669,659.09, 924,136.51 and 363,741.44

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Solution

The fourth proportional to 669,659.09, 924,136.51 and 363,741.44 is: 501,966.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,659.09 : 924,136.51 = 363,741.44 : x
  2. Step 2: Convert to fraction form
    669,659.09/924,136.51 = 363,741.44/x
  3. Step 3: Cross multiply
    669,659.09x = 924,136.51 × 363,741.44
  4. Step 4: Simplify right side
    669,659.09x = 336,146,744,903.97
  5. Step 5: Solve for x
    x = 336,146,744,903.97/669,659.09
  6. Step 6: Final answer
    x = 501,966.97

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.