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Finding the Fourth Proportional to 495,529.60, 694,208 and 495,529.60

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Solution

The fourth proportional to 495,529.60, 694,208 and 495,529.60 is: 694,208

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,529.60 : 694,208 = 495,529.60 : x
  2. Step 2: Convert to fraction form
    495,529.60/694,208 = 495,529.60/x
  3. Step 3: Cross multiply
    495,529.60x = 694,208 × 495,529.60
  4. Step 4: Simplify right side
    495,529.60x = 344,000,612,556.80
  5. Step 5: Solve for x
    x = 344,000,612,556.80/495,529.60
  6. Step 6: Final answer
    x = 694,208

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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.