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Finding the Fourth Proportional to 504,587.76, 696,353.40 and 289,736.88

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Solution

The fourth proportional to 504,587.76, 696,353.40 and 289,736.88 is: 399,849.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,587.76 : 696,353.40 = 289,736.88 : x
  2. Step 2: Convert to fraction form
    504,587.76/696,353.40 = 289,736.88/x
  3. Step 3: Cross multiply
    504,587.76x = 696,353.40 × 289,736.88
  4. Step 4: Simplify right side
    504,587.76x = 201,759,261,493.39
  5. Step 5: Solve for x
    x = 201,759,261,493.39/504,587.76
  6. Step 6: Final answer
    x = 399,849.69

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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.