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Finding the Fourth Proportional to 536,645.10, 804,967.65 and 347,688.30

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Solution

The fourth proportional to 536,645.10, 804,967.65 and 347,688.30 is: 521,532.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,645.10 : 804,967.65 = 347,688.30 : x
  2. Step 2: Convert to fraction form
    536,645.10/804,967.65 = 347,688.30/x
  3. Step 3: Cross multiply
    536,645.10x = 804,967.65 × 347,688.30
  4. Step 4: Simplify right side
    536,645.10x = 279,877,833,783.50
  5. Step 5: Solve for x
    x = 279,877,833,783.50/536,645.10
  6. Step 6: Final answer
    x = 521,532.45

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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.