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Finding the Fourth Proportional to 504,440.96, 696,076.80 and 289,529.60

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Solution

The fourth proportional to 504,440.96, 696,076.80 and 289,529.60 is: 399,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,440.96 : 696,076.80 = 289,529.60 : x
  2. Step 2: Convert to fraction form
    504,440.96/696,076.80 = 289,529.60/x
  3. Step 3: Cross multiply
    504,440.96x = 696,076.80 × 289,529.60
  4. Step 4: Simplify right side
    504,440.96x = 201,534,837,473.28
  5. Step 5: Solve for x
    x = 201,534,837,473.28/504,440.96
  6. Step 6: Final answer
    x = 399,521.16

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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.