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Finding the Fourth Proportional to 482,081.60, 665,059.74 and 338,935.16

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Solution

The fourth proportional to 482,081.60, 665,059.74 and 338,935.16 is: 467,580.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,081.60 : 665,059.74 = 338,935.16 : x
  2. Step 2: Convert to fraction form
    482,081.60/665,059.74 = 338,935.16/x
  3. Step 3: Cross multiply
    482,081.60x = 665,059.74 × 338,935.16
  4. Step 4: Simplify right side
    482,081.60x = 225,412,129,386.46
  5. Step 5: Solve for x
    x = 225,412,129,386.46/482,081.60
  6. Step 6: Final answer
    x = 467,580.86

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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.