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Finding the Fourth Proportional to 615,538.20, 923,307.30 and 482,827.80

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Solution

The fourth proportional to 615,538.20, 923,307.30 and 482,827.80 is: 724,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,538.20 : 923,307.30 = 482,827.80 : x
  2. Step 2: Convert to fraction form
    615,538.20/923,307.30 = 482,827.80/x
  3. Step 3: Cross multiply
    615,538.20x = 923,307.30 × 482,827.80
  4. Step 4: Simplify right side
    615,538.20x = 445,798,432,382.94
  5. Step 5: Solve for x
    x = 445,798,432,382.94/615,538.20
  6. Step 6: Final answer
    x = 724,241.70

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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.