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Finding the Fourth Proportional to 455,431.40, 683,147.10 and 174,955.40

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Solution

The fourth proportional to 455,431.40, 683,147.10 and 174,955.40 is: 262,433.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,431.40 : 683,147.10 = 174,955.40 : x
  2. Step 2: Convert to fraction form
    455,431.40/683,147.10 = 174,955.40/x
  3. Step 3: Cross multiply
    455,431.40x = 683,147.10 × 174,955.40
  4. Step 4: Simplify right side
    455,431.40x = 119,520,274,139.34
  5. Step 5: Solve for x
    x = 119,520,274,139.34/455,431.40
  6. Step 6: Final answer
    x = 262,433.10

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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.