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Finding the Fourth Proportional to 508,907.60, 763,361.40 and 295,456.40

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Solution

The fourth proportional to 508,907.60, 763,361.40 and 295,456.40 is: 443,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,907.60 : 763,361.40 = 295,456.40 : x
  2. Step 2: Convert to fraction form
    508,907.60/763,361.40 = 295,456.40/x
  3. Step 3: Cross multiply
    508,907.60x = 763,361.40 × 295,456.40
  4. Step 4: Simplify right side
    508,907.60x = 225,540,011,142.96
  5. Step 5: Solve for x
    x = 225,540,011,142.96/508,907.60
  6. Step 6: Final answer
    x = 443,184.60

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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.