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Finding the Fourth Proportional to 472,984.80, 709,914.60 and 236,497.20

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Solution

The fourth proportional to 472,984.80, 709,914.60 and 236,497.20 is: 354,964.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,984.80 : 709,914.60 = 236,497.20 : x
  2. Step 2: Convert to fraction form
    472,984.80/709,914.60 = 236,497.20/x
  3. Step 3: Cross multiply
    472,984.80x = 709,914.60 × 236,497.20
  4. Step 4: Simplify right side
    472,984.80x = 167,892,815,139.12
  5. Step 5: Solve for x
    x = 167,892,815,139.12/472,984.80
  6. Step 6: Final answer
    x = 354,964.50

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Half scale
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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.