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Finding the Fourth Proportional to 531,657.60, 797,486.40 and 251,721.60

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Solution

The fourth proportional to 531,657.60, 797,486.40 and 251,721.60 is: 377,582.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,657.60 : 797,486.40 = 251,721.60 : x
  2. Step 2: Convert to fraction form
    531,657.60/797,486.40 = 251,721.60/x
  3. Step 3: Cross multiply
    531,657.60x = 797,486.40 × 251,721.60
  4. Step 4: Simplify right side
    531,657.60x = 200,744,552,586.24
  5. Step 5: Solve for x
    x = 200,744,552,586.24/531,657.60
  6. Step 6: Final answer
    x = 377,582.40

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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.