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Finding the Fourth Proportional to 507,996.40, 761,461.19 and 170,920.03

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Solution

The fourth proportional to 507,996.40, 761,461.19 and 170,920.03 is: 256,200.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,996.40 : 761,461.19 = 170,920.03 : x
  2. Step 2: Convert to fraction form
    507,996.40/761,461.19 = 170,920.03/x
  3. Step 3: Cross multiply
    507,996.40x = 761,461.19 × 170,920.03
  4. Step 4: Simplify right side
    507,996.40x = 130,148,965,204.03
  5. Step 5: Solve for x
    x = 130,148,965,204.03/507,996.40
  6. Step 6: Final answer
    x = 256,200.57

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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.