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Finding the Fourth Proportional to 469,291.20, 703,936.80 and 153,758.40

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Solution

The fourth proportional to 469,291.20, 703,936.80 and 153,758.40 is: 230,637.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,291.20 : 703,936.80 = 153,758.40 : x
  2. Step 2: Convert to fraction form
    469,291.20/703,936.80 = 153,758.40/x
  3. Step 3: Cross multiply
    469,291.20x = 703,936.80 × 153,758.40
  4. Step 4: Simplify right side
    469,291.20x = 108,236,196,069.12
  5. Step 5: Solve for x
    x = 108,236,196,069.12/469,291.20
  6. Step 6: Final answer
    x = 230,637.60

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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.