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Finding the Fourth Proportional to 656,514.99, 984,493.58 and 257,092.25

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Solution

The fourth proportional to 656,514.99, 984,493.58 and 257,092.25 is: 385,529.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,514.99 : 984,493.58 = 257,092.25 : x
  2. Step 2: Convert to fraction form
    656,514.99/984,493.58 = 257,092.25/x
  3. Step 3: Cross multiply
    656,514.99x = 984,493.58 × 257,092.25
  4. Step 4: Simplify right side
    656,514.99x = 253,105,663,384.83
  5. Step 5: Solve for x
    x = 253,105,663,384.83/656,514.99
  6. Step 6: Final answer
    x = 385,529.15

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Half scale
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Double scale
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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.