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Finding the Fourth Proportional to 619,276.16, 854,532.74 and 347,288.07

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Solution

The fourth proportional to 619,276.16, 854,532.74 and 347,288.07 is: 479,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,276.16 : 854,532.74 = 347,288.07 : x
  2. Step 2: Convert to fraction form
    619,276.16/854,532.74 = 347,288.07/x
  3. Step 3: Cross multiply
    619,276.16x = 854,532.74 × 347,288.07
  4. Step 4: Simplify right side
    619,276.16x = 296,769,024,289.97
  5. Step 5: Solve for x
    x = 296,769,024,289.97/619,276.16
  6. Step 6: Final answer
    x = 479,219.20

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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.