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Finding the Fourth Proportional to 586,664.64, 809,481.60 and 357,160.32

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Solution

The fourth proportional to 586,664.64, 809,481.60 and 357,160.32 is: 492,810.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,664.64 : 809,481.60 = 357,160.32 : x
  2. Step 2: Convert to fraction form
    586,664.64/809,481.60 = 357,160.32/x
  3. Step 3: Cross multiply
    586,664.64x = 809,481.60 × 357,160.32
  4. Step 4: Simplify right side
    586,664.64x = 289,114,707,290.11
  5. Step 5: Solve for x
    x = 289,114,707,290.11/586,664.64
  6. Step 6: Final answer
    x = 492,810.86

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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.