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Finding the Fourth Proportional to 504,764.88, 696,574.16 and 289,918.80

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Solution

The fourth proportional to 504,764.88, 696,574.16 and 289,918.80 is: 400,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,764.88 : 696,574.16 = 289,918.80 : x
  2. Step 2: Convert to fraction form
    504,764.88/696,574.16 = 289,918.80/x
  3. Step 3: Cross multiply
    504,764.88x = 696,574.16 × 289,918.80
  4. Step 4: Simplify right side
    504,764.88x = 201,949,944,578.21
  5. Step 5: Solve for x
    x = 201,949,944,578.21/504,764.88
  6. Step 6: Final answer
    x = 400,087.15

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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.