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Finding the Fourth Proportional to 516,764.56, 713,130.60 and 290,409.52

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Solution

The fourth proportional to 516,764.56, 713,130.60 and 290,409.52 is: 400,762.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,764.56 : 713,130.60 = 290,409.52 : x
  2. Step 2: Convert to fraction form
    516,764.56/713,130.60 = 290,409.52/x
  3. Step 3: Cross multiply
    516,764.56x = 713,130.60 × 290,409.52
  4. Step 4: Simplify right side
    516,764.56x = 207,099,915,243.31
  5. Step 5: Solve for x
    x = 207,099,915,243.31/516,764.56
  6. Step 6: Final answer
    x = 400,762.61

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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.