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Finding the Fourth Proportional to 586,667.64, 809,485.74 and 357,163.32

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Solution

The fourth proportional to 586,667.64, 809,485.74 and 357,163.32 is: 492,815.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,667.64 : 809,485.74 = 357,163.32 : x
  2. Step 2: Convert to fraction form
    586,667.64/809,485.74 = 357,163.32/x
  3. Step 3: Cross multiply
    586,667.64x = 809,485.74 × 357,163.32
  4. Step 4: Simplify right side
    586,667.64x = 289,118,614,391.06
  5. Step 5: Solve for x
    x = 289,118,614,391.06/586,667.64
  6. Step 6: Final answer
    x = 492,815.00

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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.