Home / 415,921.60-623,882.40-317,617.60

Finding the Fourth Proportional to 415,921.60, 623,882.40 and 317,617.60

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Solution

The fourth proportional to 415,921.60, 623,882.40 and 317,617.60 is: 476,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,921.60 : 623,882.40 = 317,617.60 : x
  2. Step 2: Convert to fraction form
    415,921.60/623,882.40 = 317,617.60/x
  3. Step 3: Cross multiply
    415,921.60x = 623,882.40 × 317,617.60
  4. Step 4: Simplify right side
    415,921.60x = 198,156,030,570.24
  5. Step 5: Solve for x
    x = 198,156,030,570.24/415,921.60
  6. Step 6: Final answer
    x = 476,426.40

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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.