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Finding the Fourth Proportional to 504,710.06, 696,541.75 and 289,891.58

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Solution

The fourth proportional to 504,710.06, 696,541.75 and 289,891.58 is: 400,074.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,710.06 : 696,541.75 = 289,891.58 : x
  2. Step 2: Convert to fraction form
    504,710.06/696,541.75 = 289,891.58/x
  3. Step 3: Cross multiply
    504,710.06x = 696,541.75 × 289,891.58
  4. Step 4: Simplify right side
    504,710.06x = 201,921,584,236.03
  5. Step 5: Solve for x
    x = 201,921,584,236.03/504,710.06
  6. Step 6: Final answer
    x = 400,074.42

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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.