Home / 912,316.80-1,368,475.20-613,718.40

Finding the Fourth Proportional to 912,316.80, 1,368,475.20 and 613,718.40

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Solution

The fourth proportional to 912,316.80, 1,368,475.20 and 613,718.40 is: 920,577.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,316.80 : 1,368,475.20 = 613,718.40 : x
  2. Step 2: Convert to fraction form
    912,316.80/1,368,475.20 = 613,718.40/x
  3. Step 3: Cross multiply
    912,316.80x = 1,368,475.20 × 613,718.40
  4. Step 4: Simplify right side
    912,316.80x = 839,858,410,183.68
  5. Step 5: Solve for x
    x = 839,858,410,183.68/912,316.80
  6. Step 6: Final answer
    x = 920,577.60

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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.