Home / 509,946.30-764,919.45-230,010.30

Finding the Fourth Proportional to 509,946.30, 764,919.45 and 230,010.30

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Solution

The fourth proportional to 509,946.30, 764,919.45 and 230,010.30 is: 345,015.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,946.30 : 764,919.45 = 230,010.30 : x
  2. Step 2: Convert to fraction form
    509,946.30/764,919.45 = 230,010.30/x
  3. Step 3: Cross multiply
    509,946.30x = 764,919.45 × 230,010.30
  4. Step 4: Simplify right side
    509,946.30x = 175,939,352,170.34
  5. Step 5: Solve for x
    x = 175,939,352,170.34/509,946.30
  6. Step 6: Final answer
    x = 345,015.45

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Half scale
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Double scale
Find fourth proportional to 509,947.30, 764,920.95 and 230,011.30
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.