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Finding the Fourth Proportional to 517,116.99, 775,675.49 and 162,159.60

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Solution

The fourth proportional to 517,116.99, 775,675.49 and 162,159.60 is: 243,239.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,116.99 : 775,675.49 = 162,159.60 : x
  2. Step 2: Convert to fraction form
    517,116.99/775,675.49 = 162,159.60/x
  3. Step 3: Cross multiply
    517,116.99x = 775,675.49 × 162,159.60
  4. Step 4: Simplify right side
    517,116.99x = 125,783,226,377.41
  5. Step 5: Solve for x
    x = 125,783,226,377.41/517,116.99
  6. Step 6: Final answer
    x = 243,239.40

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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.