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Finding the Fourth Proportional to 413,078.77, 570,412.22 and 258,295.33

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Solution

The fourth proportional to 413,078.77, 570,412.22 and 258,295.33 is: 356,674.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,078.77 : 570,412.22 = 258,295.33 : x
  2. Step 2: Convert to fraction form
    413,078.77/570,412.22 = 258,295.33/x
  3. Step 3: Cross multiply
    413,078.77x = 570,412.22 × 258,295.33
  4. Step 4: Simplify right side
    413,078.77x = 147,334,812,600.93
  5. Step 5: Solve for x
    x = 147,334,812,600.93/413,078.77
  6. Step 6: Final answer
    x = 356,674.86

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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.