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Finding the Fourth Proportional to 517,302.50, 775,986.56 and 162,330.53

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Solution

The fourth proportional to 517,302.50, 775,986.56 and 162,330.53 is: 243,506.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,302.50 : 775,986.56 = 162,330.53 : x
  2. Step 2: Convert to fraction form
    517,302.50/775,986.56 = 162,330.53/x
  3. Step 3: Cross multiply
    517,302.50x = 775,986.56 × 162,330.53
  4. Step 4: Simplify right side
    517,302.50x = 125,966,309,383.20
  5. Step 5: Solve for x
    x = 125,966,309,383.20/517,302.50
  6. Step 6: Final answer
    x = 243,506.09

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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.