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Finding the Fourth Proportional to 458,601.60, 686,541.60 and 340,795.20

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Solution

The fourth proportional to 458,601.60, 686,541.60 and 340,795.20 is: 510,181.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,601.60 : 686,541.60 = 340,795.20 : x
  2. Step 2: Convert to fraction form
    458,601.60/686,541.60 = 340,795.20/x
  3. Step 3: Cross multiply
    458,601.60x = 686,541.60 × 340,795.20
  4. Step 4: Simplify right side
    458,601.60x = 233,970,081,880.32
  5. Step 5: Solve for x
    x = 233,970,081,880.32/458,601.60
  6. Step 6: Final answer
    x = 510,181.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.