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Finding the Fourth Proportional to 653,817.81, 980,725.27 and 174,045.72

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Solution

The fourth proportional to 653,817.81, 980,725.27 and 174,045.72 is: 261,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,817.81 : 980,725.27 = 174,045.72 : x
  2. Step 2: Convert to fraction form
    653,817.81/980,725.27 = 174,045.72/x
  3. Step 3: Cross multiply
    653,817.81x = 980,725.27 × 174,045.72
  4. Step 4: Simplify right side
    653,817.81x = 170,691,035,739.34
  5. Step 5: Solve for x
    x = 170,691,035,739.34/653,817.81
  6. Step 6: Final answer
    x = 261,068.20

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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.