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Finding the Fourth Proportional to 348,132.93, 480,580.87 and 219,260.80

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Solution

The fourth proportional to 348,132.93, 480,580.87 and 219,260.80 is: 302,679.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,132.93 : 480,580.87 = 219,260.80 : x
  2. Step 2: Convert to fraction form
    348,132.93/480,580.87 = 219,260.80/x
  3. Step 3: Cross multiply
    348,132.93x = 480,580.87 × 219,260.80
  4. Step 4: Simplify right side
    348,132.93x = 105,372,545,867.91
  5. Step 5: Solve for x
    x = 105,372,545,867.91/348,132.93
  6. Step 6: Final answer
    x = 302,679.05

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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.