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Finding the Fourth Proportional to 398,082.90, 597,124.35 and 240,618.90

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Solution

The fourth proportional to 398,082.90, 597,124.35 and 240,618.90 is: 360,928.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,082.90 : 597,124.35 = 240,618.90 : x
  2. Step 2: Convert to fraction form
    398,082.90/597,124.35 = 240,618.90/x
  3. Step 3: Cross multiply
    398,082.90x = 597,124.35 × 240,618.90
  4. Step 4: Simplify right side
    398,082.90x = 143,679,404,260.22
  5. Step 5: Solve for x
    x = 143,679,404,260.22/398,082.90
  6. Step 6: Final answer
    x = 360,928.35

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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.