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Finding the Fourth Proportional to 469,595.20, 704,392.80 and 311,310.40

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Solution

The fourth proportional to 469,595.20, 704,392.80 and 311,310.40 is: 466,965.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,595.20 : 704,392.80 = 311,310.40 : x
  2. Step 2: Convert to fraction form
    469,595.20/704,392.80 = 311,310.40/x
  3. Step 3: Cross multiply
    469,595.20x = 704,392.80 × 311,310.40
  4. Step 4: Simplify right side
    469,595.20x = 219,284,804,325.12
  5. Step 5: Solve for x
    x = 219,284,804,325.12/469,595.20
  6. Step 6: Final answer
    x = 466,965.60

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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.