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Finding the Fourth Proportional to 764,907.84, 1,147,361.76 and 364,334.76

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Solution

The fourth proportional to 764,907.84, 1,147,361.76 and 364,334.76 is: 546,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    764,907.84 : 1,147,361.76 = 364,334.76 : x
  2. Step 2: Convert to fraction form
    764,907.84/1,147,361.76 = 364,334.76/x
  3. Step 3: Cross multiply
    764,907.84x = 1,147,361.76 × 364,334.76
  4. Step 4: Simplify right side
    764,907.84x = 418,023,771,462.78
  5. Step 5: Solve for x
    x = 418,023,771,462.78/764,907.84
  6. Step 6: Final answer
    x = 546,502.14

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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.