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Finding the Fourth Proportional to 531,926.70, 797,890.05 and 265,728.30

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Solution

The fourth proportional to 531,926.70, 797,890.05 and 265,728.30 is: 398,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,926.70 : 797,890.05 = 265,728.30 : x
  2. Step 2: Convert to fraction form
    531,926.70/797,890.05 = 265,728.30/x
  3. Step 3: Cross multiply
    531,926.70x = 797,890.05 × 265,728.30
  4. Step 4: Simplify right side
    531,926.70x = 212,021,966,573.42
  5. Step 5: Solve for x
    x = 212,021,966,573.42/531,926.70
  6. Step 6: Final answer
    x = 398,592.45

Related Problems

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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.