Home / 460,055.20-690,082.80-144,511.60

Finding the Fourth Proportional to 460,055.20, 690,082.80 and 144,511.60

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Solution

The fourth proportional to 460,055.20, 690,082.80 and 144,511.60 is: 216,767.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,055.20 : 690,082.80 = 144,511.60 : x
  2. Step 2: Convert to fraction form
    460,055.20/690,082.80 = 144,511.60/x
  3. Step 3: Cross multiply
    460,055.20x = 690,082.80 × 144,511.60
  4. Step 4: Simplify right side
    460,055.20x = 99,724,969,560.48
  5. Step 5: Solve for x
    x = 99,724,969,560.48/460,055.20
  6. Step 6: Final answer
    x = 216,767.40

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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.