Home / 510,166.20-764,327.70-436,438.20

Finding the Fourth Proportional to 510,166.20, 764,327.70 and 436,438.20

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Solution

The fourth proportional to 510,166.20, 764,327.70 and 436,438.20 is: 653,868.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,166.20 : 764,327.70 = 436,438.20 : x
  2. Step 2: Convert to fraction form
    510,166.20/764,327.70 = 436,438.20/x
  3. Step 3: Cross multiply
    510,166.20x = 764,327.70 × 436,438.20
  4. Step 4: Simplify right side
    510,166.20x = 333,581,805,598.14
  5. Step 5: Solve for x
    x = 333,581,805,598.14/510,166.20
  6. Step 6: Final answer
    x = 653,868.89

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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.