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Finding the Fourth Proportional to 504,977.73, 696,871.67 and 278,623.23

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Solution

The fourth proportional to 504,977.73, 696,871.67 and 278,623.23 is: 384,501.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,977.73 : 696,871.67 = 278,623.23 : x
  2. Step 2: Convert to fraction form
    504,977.73/696,871.67 = 278,623.23/x
  3. Step 3: Cross multiply
    504,977.73x = 696,871.67 × 278,623.23
  4. Step 4: Simplify right side
    504,977.73x = 194,164,634,197.78
  5. Step 5: Solve for x
    x = 194,164,634,197.78/504,977.73
  6. Step 6: Final answer
    x = 384,501.38

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.