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Finding the Fourth Proportional to 296,494.40, 415,921.60 and 296,494.40

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Solution

The fourth proportional to 296,494.40, 415,921.60 and 296,494.40 is: 415,921.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,494.40 : 415,921.60 = 296,494.40 : x
  2. Step 2: Convert to fraction form
    296,494.40/415,921.60 = 296,494.40/x
  3. Step 3: Cross multiply
    296,494.40x = 415,921.60 × 296,494.40
  4. Step 4: Simplify right side
    296,494.40x = 123,318,425,239.04
  5. Step 5: Solve for x
    x = 123,318,425,239.04/296,494.40
  6. Step 6: Final answer
    x = 415,921.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.