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Finding the Fourth Proportional to 526,382.51, 725,554.73 and 411,458.09

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Solution

The fourth proportional to 526,382.51, 725,554.73 and 411,458.09 is: 567,145.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,382.51 : 725,554.73 = 411,458.09 : x
  2. Step 2: Convert to fraction form
    526,382.51/725,554.73 = 411,458.09/x
  3. Step 3: Cross multiply
    526,382.51x = 725,554.73 × 411,458.09
  4. Step 4: Simplify right side
    526,382.51x = 298,535,360,797.14
  5. Step 5: Solve for x
    x = 298,535,360,797.14/526,382.51
  6. Step 6: Final answer
    x = 567,145.29

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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.