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Finding the Fourth Proportional to 516,809.18, 713,415.39 and 484,525.82

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Solution

The fourth proportional to 516,809.18, 713,415.39 and 484,525.82 is: 668,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,809.18 : 713,415.39 = 484,525.82 : x
  2. Step 2: Convert to fraction form
    516,809.18/713,415.39 = 484,525.82/x
  3. Step 3: Cross multiply
    516,809.18x = 713,415.39 × 484,525.82
  4. Step 4: Simplify right side
    516,809.18x = 345,668,176,840.37
  5. Step 5: Solve for x
    x = 345,668,176,840.37/516,809.18
  6. Step 6: Final answer
    x = 668,850.69

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Double scale
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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.