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Finding the Fourth Proportional to 536,605.10, 804,907.65 and 347,648.30

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Solution

The fourth proportional to 536,605.10, 804,907.65 and 347,648.30 is: 521,472.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,605.10 : 804,907.65 = 347,648.30 : x
  2. Step 2: Convert to fraction form
    536,605.10/804,907.65 = 347,648.30/x
  3. Step 3: Cross multiply
    536,605.10x = 804,907.65 × 347,648.30
  4. Step 4: Simplify right side
    536,605.10x = 279,824,776,179.50
  5. Step 5: Solve for x
    x = 279,824,776,179.50/536,605.10
  6. Step 6: Final answer
    x = 521,472.45

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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.