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Finding the Fourth Proportional to 415,948.40, 623,922.60 and 363,460.40

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Solution

The fourth proportional to 415,948.40, 623,922.60 and 363,460.40 is: 545,190.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,948.40 : 623,922.60 = 363,460.40 : x
  2. Step 2: Convert to fraction form
    415,948.40/623,922.60 = 363,460.40/x
  3. Step 3: Cross multiply
    415,948.40x = 623,922.60 × 363,460.40
  4. Step 4: Simplify right side
    415,948.40x = 226,771,157,765.04
  5. Step 5: Solve for x
    x = 226,771,157,765.04/415,948.40
  6. Step 6: Final answer
    x = 545,190.60

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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.